Edit: To those downvoting, could please comment the reason as to why you are downvoting? The comments that are there right now do not explain the reason for the downvotes. I am genuinely curious as to what the thinking behind disliking the post is.
Imagine you are a trans woman in the 15th century. You lack the tech to grow boobs. You lack the tech to make ur dick into a vagina. However, the want still exists and is very real.
Now imagine the year is 2124. You are 55 years old. The tech to look exactly like you looked when you were sayyy 12 exists. You want to look like that. I would say that looking like that is your right. It’s your body after all.
However, you are still 55 years old. You just LOOK like a child. But you possess the ability to consent. Is having sex with such people moral? (I would say it is).
This however introduces problems. How do you differentiate between actual children and people who physically look like children? Would this be a political issue then? Would adults who want to have sex with adults (but those who look like kids) be discriminated against? Would there be movements for this?
By the time we can regress bone maturation to preteen ages we will probably have dozens of demihuman archetypes everywhere, from elves, dwarves, aliens, and cat/puppy/wolf/dragon/lizard girls/boys (and everything in between) to sift through, so the odd “900 year old dragon in the form of a 10 year old girl” archetype will be passe.
Might be smarter to require something obvious to be changed with your age/genetics to clearly identify you. More realistically, there will probably be some sort of bio-identifier that can clearly identify who the person is after being changed, like a qr code tattoo or something.
No tattoo, that’s a clue.