I agree it's not *necessary* but from what I could tell so far, the game doesn't even seem to recognize your character's sex in any way, which means changing it shouldn't affect anything. It seems to be a cosmetic choice as trivial as choosing your face type, hair color, etc., so I guess it would be trivial to allow changing it. Correct me if I'm wrong.
It's not strictly about sex, and yes, the game does check for/recognize the player defining traits at several steps.
Im also not arguing against the liberty to let the player characters be whatever they want to be, but against the idea that that should be something that can be changed at will mid-run.
