d9f1c7
I agree with you that at 5, a child should have no concept of gender GID, and this child *doesn't*. In his mind (I'll use the male pronoun for simplicity) he's a girl. Also, this has been going on for a couple of years now. He may very well grow out of it, and he may not.
To OG's point "He'd be better helped by being guided to accept who he is" - aye, but there's the rub...it's possible that who 'he' is...is a little girl, born into the wrong physical body.
It's a real phychological minefield, this one - extremely easy to get it wrong, no matter which way you go with his upbringing.