[Diogenesis]

One of the reason they want to hurry to do male-to-female transitioning on boys is that as they hit puberty, testosterone will cause changes to the body that will make it harder to pass as a woman later.

This is why "trans women" are a lot more noticeable than "trans men". A woman can take testosterone to deepen her voice and effect the other changes needed to appear like a man. A man can't shrink the size of his larynx.