Glad you’re treating the topic with the seriousness it deserves.
Anyway, back to an adult discussion..
Early social transition creates the need for puberty blockers and medical transition.
This is difficult isn’t it. Where do you draw the line between highly gender non conforming behaviour and ‘transition’? A child can adopt the stereotypical clothes etc of the other sex, but that can can lead to people starting to see or treat them as that sex, by contemporaries and new people.
So a male child wants to grow long hair and wear skirts etc.. would you ever forbid that? Assume most here would be ok with it. But what if more and more people start assuming the child is female and the child encourages that? Refers to themselves a she, or asks people to. Gets deeper and deeper into a life where they are practically living as a female - or rather with people treating them as if they were female.
Same for ‘extreme tomboys’. If they ‘act like a boy’, dress like a boy, tell people they meet their name is a boy? How do you stop them? Where is that line between GNC behaviour and ‘transition by stealth’ (as in incremental steps).
And at what point in that stealthy (almost) transition does a child start to become so set on the idea that they are that sex, that it becomes more and more difficult to persuade them they are not?