The situation happened months ago but my partner (38m) recently brought it up in a fight and I want to ask random people on the internet for their unbiased opinion.

My (34f) was hanging out with my SD (12f) about all things HP. This is something we both love and bonded over the past 7 years.

Her question: If boys can't go in the girl's dorms, where do the trans kids sleep?

My answer (may not be word for word because this was months ago but same tone): "I'll give you a short answer first, then I want to give you extra info. Cool? *she nods* My Hogwarts would let them sleep in the dorm that helps them find their true self." I then went on to say HP makes some people in the community feel unwelcome because the author has expressed unsupportive views towards them. I didn't go into detail, or anything like that. She didn't ask any follow-up questions, just that she hoped Hogwarts was like what I think. and we moved on to talk about Hagrid and dragons and student safety and how Arnold from Magic School bus would not do well at this school.

My partner thinks I should have not answered as he doesn't think kids are trans naturally, and thinks it's an 18 issue, and shouldn't be on a kid's radar. At the time, a child came out as trans at her school, different grade, but they sometimes played together.

He was not home at the time, so I could not divert to him, and I think if a kid can ask a question like this, they deserve a respectful answer (obviously age-appropriate). He also hates HP and likely wouldn't be able to answer, even if he wanted to. He's fine with me answering "women" questions when she's here as long as I don't prompt (unless I'm checking on a supply and demand situation).

We didn't speak longer than 5 minutes on the topic before we moved on, and she never brought it up again. I wanted her to hear a positive answer while being aware it may be sensitive for some people in that community so she would understand the pushback (if any was ever given).

I'm generally curious how other people would have handled it. I didn't want to make a big deal by saying 'That's a daddy question'. Should I have not answered her?