I do not agree with this at all.
There is only 2 genders, we should not allow anyone to teach anything different. Can a boy feel as a girl or vise versa. I’m sure of it and that is fine and they should not be harassed or treated any different. But regardless their born gender should be what rest room or locker room they use. They can dress as they like even ask to be called a different name that is on their given by birth, but no one should be held to calling them such name. He, she are pronouns that are normal for anyone. If you look like a boy he if a girl she. That person can say at that time what they prefer you to acknowledge them by. If it addenda the role rain no action should be taken upon either. Nor should the other be ridiculed for their choice.