Individually, each of the girls is super sweet, thoughtful and considerate.

As a group it is all about fitting in and punishing any kind of non-conformity.

They are slowly learning, though.

This type of group dynamic seems not to be uncommon, I've been told.
Especially (but not exclusively) within girl groups.

Hence my earlier call for caution.

Or maybe it's for an AI roleplay bot

That did occur to me, but the phrasing of "future girlfriend" seemed a little off for that in the context of someone accepting and understanding. It would have the same vibes as when I hear boomers who are trying to be accepting but are just a little outdated when they say things like "back when [person] used to be a boy". Which it is my understanding is not generally the preferred way of speaking about it.

But I'm neither trans no currently close friends with anyone who is, so I'd love to be corrected if I'm wrong.

So yeah, I was thinking mainly the AI thing, which doesn't seem super healthy.