@OldCrone ,
I would have said of course you can enter. I wouldn’t have gone anywhere near the contradiction in thinking you are a boy and entering a girls’ maths competition. I would have entered her under ‘John’ and contacted the competition organiser and explained the situation.
In the unlikely event I was charged by another pupil, I would have said the competition was segregated by sex, not gender, and left it there.
In the same way, I thought it pretty bizarre that a girl in a girls’ school where I taught wanted to socially transition but remain at the same school. As long as she behaved and studied in the lesson, it wasn’t my business. Not my monkey, not my circus….
This compelled pronouns thing is quite strange, though. It is very rare you have to use a pronoun in a lesson (the only time I did, I had probably forgotten the pupil’s name!). I can only think of it coming up in report writing, where you can avoid it by name repetition, and conversations with other staff, which is a fair time to stick to your principles.
Do you think that his solution of calling every other child by their name but just pointing at her was acceptable?