1. One of Sokka's most egregious moments was his utter lack of concern as shown in "The Southern Raiders". In fact, for being such a poignant episode about his and Katara's mother, his role was more or less comic relief. So... what was his deal? I've waffled on this one quite a bit, but ultimately I've concluded that he's long dealt with the death of his mother. Whereas Katara was strong after their mother's death, Sokka was very vulnerable at that time. Thanks to Kanna and Hakoda, he eventually worked his way through it. It's why, when he talked to Zuko about it, he could go from being sad about it to instantly anxious for his 'special time' with Suki. It was in the past.
So when Katara left to go get her revenge, he ultimately didn't stop her. After all, he likely realized she never quite got that closure, especially since she was so close to the action when it happened. So he didn't raise as many objections as he could have. But they did talk about it after the fact. The episode closes with Katara walking towards Sokka (and Appa). So things were discussed.
2. Going with the above, he never did find out that the raiders were looking for a waterbender and that's why their mother died. He didn't find out until Luceti, when AU!Katara's story made it painfully obvious what had happened. He doesn't hold it against Katara.
3. Sokka is something of a prodigy with untapped potential. Being in the isolated South Pole, he never really had much to work with and all his lessons came from Gran Gran, but he was very knowledgable about whatever scientific facts he could get. Unfortunately Sokka is very focused when it comes to learning. He only pays attention to things he think are beneficial to him, especially in a battle situation. If he learned for the sake of learning, he could be extremely intelligent.
4. He's also a quick study for combat. This is kind of a forced explanation for how Sokka goes from being rather incompetent at the beginning (save for with his boomerang) to being able to cut a soldier's spear down the middle in mid air with perfect precision, mere episodes after learning from Piandao (not to mention being able to beat Piandao's butler only a day or so into training). Learning a particular style is hard for him though, he's at his best at improvising in combat. He also excels at rematches, because once he learns an opponent's moves, he's able to counter them a lot better.
5. This was never said one way or another in the show, but Sokka receiving a White Lotus tile from Piandao makes him an initiate in the Order. Sokka is completely unaware of this, however.
6. Before the AU event, Sokka had been convinced he would want to be an Earthbender the most, because they have the most fun. However, a week of the Avatar and going around surfing on the water, he'd definitely pick Waterbending.
7. Although he's not as adamant as he was about it in Book One, Sokka still perceives himself as the 'leader' of Team Avatar, even though he realizes most of the time it's usually group decisions that lead the way. He's not very good at being the responsible, mature one though. He does have his moments (especially shown in The Runaway with Toph), so he ends up being the one who keeps the group motivated either by being demanding (like with his schedule in The Painted Lady) or just by being a goof that keeps things interesting (as seen when he isn't around the group in Sokka's Master).
8. Sokka's guilt over failing Yue is one of the reasons he has his so-called 'harem' in Luceti. He's just ridiculously protective of girls and there seems to be a lot around that aren't quite as badass as the ones in his universe (but between Toph, Azula, Katara, and Suki... yeah)
9. Yue was definitely his first girlfriend, but probably not his first crush. There's other villages in the Southern Tribe. Before his dad left for the war, Sokka would sometimes visit those villages and probably had a few boyish crushes on some pretty girls his age. But once Hakoda and the men were gone, his village became isolated and he never had a chance to visit again.
10. When he and Katara were children, their dad owned a pet Polar Bear Dog that used to be part of his old sledding team. His name was Tuyok and he died when Sokka was seven.
11. Their mother used to sing to them as children and had a beautiful singing voice. Unknown to either sibling, Sokka is the one who inherited her singing voice. He is completely unaware of this, since he generally doesn't sing except for sometimes in the shower.
12. Sokka really does think his art is good. He just believes he has his own special, unique style that no one else appreciates.
13. He really struggles with his identity as a warrior. Following Sokka's Master, he had dealt with his 'Bending Envy' and began to appreciate his own value to his friends, even if he couldn't always keep up with them. Luceti was a great smack in the face for him when he met so many people who had special abilities that surpassed anything he could ever achieve. Although it's made him train all the harder, he realizes that ultimately he can never 'catch up' with everyone else. He won't admit it, but this is something that really bugs him.
14. Bloodbending is scary. Still, he doesn't worry about Katara ever using it against him. Besides, the Full Moon holds a lot more significance to him, because of Yue. The fact Katara is powered up during that time doesn't really register.
15. From the ages ten to thirteen, Sokka accompanied the hunters of his tribe, which is where he learned all his wilderness skills. Some hunting expeditions would have them leave the village for weeks at a time, either traveling further into the ice to pursue the herds or going out on fishing or whaling trips. During those times, he could see the Southern Lights far clearer than they could in the village. Also of note, his first two months in Luceti were the longest time he and Katara had ever been apart. Of course, all these hunting expeditions stopped when Hakoda and the men left for war.
15 Facts Meme
So when Katara left to go get her revenge, he ultimately didn't stop her. After all, he likely realized she never quite got that closure, especially since she was so close to the action when it happened. So he didn't raise as many objections as he could have. But they did talk about it after the fact. The episode closes with Katara walking towards Sokka (and Appa). So things were discussed.
2. Going with the above, he never did find out that the raiders were looking for a waterbender and that's why their mother died. He didn't find out until Luceti, when AU!Katara's story made it painfully obvious what had happened. He doesn't hold it against Katara.
3. Sokka is something of a prodigy with untapped potential. Being in the isolated South Pole, he never really had much to work with and all his lessons came from Gran Gran, but he was very knowledgable about whatever scientific facts he could get. Unfortunately Sokka is very focused when it comes to learning. He only pays attention to things he think are beneficial to him, especially in a battle situation. If he learned for the sake of learning, he could be extremely intelligent.
4. He's also a quick study for combat. This is kind of a forced explanation for how Sokka goes from being rather incompetent at the beginning (save for with his boomerang) to being able to cut a soldier's spear down the middle in mid air with perfect precision, mere episodes after learning from Piandao (not to mention being able to beat Piandao's butler only a day or so into training). Learning a particular style is hard for him though, he's at his best at improvising in combat. He also excels at rematches, because once he learns an opponent's moves, he's able to counter them a lot better.
5. This was never said one way or another in the show, but Sokka receiving a White Lotus tile from Piandao makes him an initiate in the Order. Sokka is completely unaware of this, however.
6. Before the AU event, Sokka had been convinced he would want to be an Earthbender the most, because they have the most fun. However, a week of the Avatar and going around surfing on the water, he'd definitely pick Waterbending.
7. Although he's not as adamant as he was about it in Book One, Sokka still perceives himself as the 'leader' of Team Avatar, even though he realizes most of the time it's usually group decisions that lead the way. He's not very good at being the responsible, mature one though. He does have his moments (especially shown in The Runaway with Toph), so he ends up being the one who keeps the group motivated either by being demanding (like with his schedule in The Painted Lady) or just by being a goof that keeps things interesting (as seen when he isn't around the group in Sokka's Master).
8. Sokka's guilt over failing Yue is one of the reasons he has his so-called 'harem' in Luceti. He's just ridiculously protective of girls and there seems to be a lot around that aren't quite as badass as the ones in his universe (but between Toph, Azula, Katara, and Suki... yeah)
9. Yue was definitely his first girlfriend, but probably not his first crush. There's other villages in the Southern Tribe. Before his dad left for the war, Sokka would sometimes visit those villages and probably had a few boyish crushes on some pretty girls his age. But once Hakoda and the men were gone, his village became isolated and he never had a chance to visit again.
10. When he and Katara were children, their dad owned a pet Polar Bear Dog that used to be part of his old sledding team. His name was Tuyok and he died when Sokka was seven.
11. Their mother used to sing to them as children and had a beautiful singing voice. Unknown to either sibling, Sokka is the one who inherited her singing voice. He is completely unaware of this, since he generally doesn't sing except for sometimes in the shower.
12. Sokka really does think his art is good. He just believes he has his own special, unique style that no one else appreciates.
13. He really struggles with his identity as a warrior. Following Sokka's Master, he had dealt with his 'Bending Envy' and began to appreciate his own value to his friends, even if he couldn't always keep up with them. Luceti was a great smack in the face for him when he met so many people who had special abilities that surpassed anything he could ever achieve. Although it's made him train all the harder, he realizes that ultimately he can never 'catch up' with everyone else. He won't admit it, but this is something that really bugs him.
14. Bloodbending is scary. Still, he doesn't worry about Katara ever using it against him. Besides, the Full Moon holds a lot more significance to him, because of Yue. The fact Katara is powered up during that time doesn't really register.
15. From the ages ten to thirteen, Sokka accompanied the hunters of his tribe, which is where he learned all his wilderness skills. Some hunting expeditions would have them leave the village for weeks at a time, either traveling further into the ice to pursue the herds or going out on fishing or whaling trips. During those times, he could see the Southern Lights far clearer than they could in the village. Also of note, his first two months in Luceti were the longest time he and Katara had ever been apart. Of course, all these hunting expeditions stopped when Hakoda and the men left for war.