*I'd really like to see some research into the mental maturation of these individuals. Jackie, Jazz, etc.
Are we actually dealing with totally undeveloped children in adult bodies? And is there any way to help them grow up? Because although the full realisation of what's happened could be devastating to them, deliberately keeping them emotionally and mentally immature can't be right.*
They are two very different cases. Jazz has grown up on a TV show and is still at home, seems to have little personal freedom or maybe doesn't seek it due to inability to manage independence, probably more related to family circumstances than the puberty blockers. Also suffering depression and mental ill health.
Jackie, despite what was done in childhood, seems to have pursued an independent path and kept private. I happened to have a look through the twitter account shortly before the mass deletions and although there were a few posts supportive of mermaids/trans ideology, and the infamous ones about surgery correcting "a small birth defect" for the most part there were posts about skiing/mountain related sport and music gigs, overall an infrequent user of social media. Having cleared the twitter account SG remains the single person JG is following. I think Jackie is probably living a fairly good life, in private and quite happy.
The thing about realising what happened to them - if a child is told they are the opposite sex from a tiny age, obviously they soon believe that and know no different, especially when this path has been pushed/enabled with the drugs and surgery. And if they are quite happy then there is no need to question it.
I think the total brainwashing would be hard to come back from and although I have an idea what sort of young man JG would be if he had been allowed to play with his dolls and grow up normally, living as a woman who wears jeans and cowboy boots, goes climbing and skiing, is a life not unlike my DD, and a perfectly happy one that either sex can cheerfully pursue. I might have thoughts if a tall strong woman suddenly started dominating female climbing competitions but that's another debate. I doubt JG will ever detransition.
Of course there may be medical problems in the future...
As to research, I think what I'm trying to say in a long winded way, is there are many other factors that will play into the emotional and mental maturity of individuals not just the puberty blockers. JG finding their own path is possibly a more unusual outcome but a good one in this instance.