Where I was playing they had all three.
I know it sounds 'woke' to some, but there is a real effort in special needs areas to stop defining people by their disabilities or certain aspects like being non-binary. For example, to stop saying a Down Syndrome kid and just say he is a kid who happens to have Down Syndrome. I agree the term 'trans kids' is a problem as that then makes being trans such an outsized part of who they are, instead of them being kids who like sports, school, riding bikes, whatever. When people are labeled there is a tendency to forget all the other things about that person.
I agree with @StringJunky though that this will for the most part go away after a while. Just like being gay, in a mixed marriages, an atheist, an unwed mother, and all the other things that are no longer an issue for most people.