Actually it doesn't.
Some schools work very well at it.
Many just have LGB groups.
Some will have separate T groups or LGBT.
But it is an issue when sex born males are calling sex born females attracted to sex born females bigots for not wanting to take part in sexual contact with sex born males who have decided that their clothing choices and interests make them female.
Personally I have literally no issue how anyone decides to dress or what they call themselves. I have a massive issue with sex born makes in sex born woman's spaces.
And I have an even bigger issue with homosexual woman not being allowed to take part in sexual acts that solely include the "homo" bit.
And I'm a heterosexual woman. But I can also tell you I wouldn't want to take part o. Sexual contact with a male sex born person who said they were female. And I'll be blowed if I'm being called a bigot for that either.
The issue isn't what people want to call themselves, dress as or sleep with.
The issue is the erosion of woman's rights in favour of other minority groups.
And a parenting forum aimed predominantly at mums is exactly the right place to discuss it.