The thing about Katara is that she was angry.
She was angry that the Fire Nation killed her mother.
She was angry that her father left them.
She was angry that she was the only Waterbender left in the south pole.
She was angry that the only person her age was her brother, who constantly disregarded her interests and her role in the tribe.
She was angry that what little waterbending she knew, had to be self-taught and how she struggled with that.
she was angry that a twelve year old instantly picked up what had taken her a long time to learn.
she was also angry that her tribe wanted to kick that twelve year old into the wilderness over a mistake.
she was angry over the earth-benders the fire nation had captured and put into a metal box.
she was angry.
And she knew she was angry.
Because she knew her own anger, she was the first to empathize with Aang when he got angry.
And it was because of it she could tell Aang forcing himself to lock his emotions up was not the answer.
Because she knew her own anger, she kept herself under control in the dessert, when everyone else was a mess.
Her anger empowered her. where anger was a tool of self-destruction for firebenders, for her it was what helped her push forward.
It was her anger that freed Aang.
It was her anger that helped her stand to Pakku.
Her anger was her strenght.
She was angry. And this was neither a mistake, nor a writing flaw.
