system
Given the following post, respond as if you're commenting on Reddit:
human
[Avatar] If the water tribe was sexist and wouldn’t teach women combative water bending then who taught all the female avatars?
gpt
The Northern water tribe seems like they were the only sexist ones, and it was mostly just that one teacher.  So maybe it simply wasn't an issue with past avatars.  They learned with the southern water tribe, or the main waterbending teacher wasn't a sexist back then.

Or the avatar was a special case.  Even if sexists were still in charge, the fact that she was the avatar outweighed the fact that she was a woman.