If you're just going to goad take your Gonads elsewhere @Antigonads .
I'm respectful to trans (I don't like to say pro as it sounds like I think everyone should be) but I do dislike children getting treatment.
What bugs me is if day a boy at 14 all of a sudden feels he should be female and within 18 months he's already getting physical treatment to transition.
Now if someone 'knew' from a young age and waited until 16/17 to properly take action I'm very supportive, because you can't help who you are.
I just worry with some transpeople it's more the social stereotype they have issues with not specifically their body and some very pro trans organisations may convince them otherwise. Liking traditionally girls things of a boy should not even be noted on the radar.
Equally if a girl has a more typical emotional/mental attitude akin to most boys, it should not matter one iota.
You sound like an amazing Mum OP - he's lucky to have you.
What things would you like people to realise or what myths would you like to debunk about transpeople?
Also, does he have any friends that are trans?
Also sorry for third question and it's personal - but is he gay (likes boys) or getting or bisexual? He may not be completely sure himself he's still quite new really.
Wish you both luck and your other daughter.