It's definitely not going to be the last part of this series (on sex differences), but it's the last part of the brain series (for now!)

One of the most famous sex researchers, John Money, tried to do something like what you're talking about, and it didn't go well. As usual in science, knowing how things work doesn't mean we know how things ought to be (the famous gap between the is and the ought that David Hume talked about: science studies the is, ethics the ought).

I think those differing levels of hormones create all these wonderful experiments that make the world a more interesting place, and create those accidents that will then become our artists and thinkers. But in some cases, since parents have the legal rights over the child, doctors may step in, with their concent, to fix something seen as a problem, which is sometimes so grave that it seriously hampers regular functioning of the child.

Thanks for the comment and the read!