childfree

My criteria would entirely allow for early "soft" transitions as you call them. Hormone therapy is significantly less invasive than any type of surgery you could undergo, as well as being similarly "reversible" like a vasectomy. I would have a similar stance to a child making a monumental choice to fully transition. Beginning on the path of a transition is much different than leaping to the final step.

My concerns typically would lie in the sense of manufactured risk when lower risk options are readily available and effective. Condoms are inexpensive, especially when you're comparing to a surgical procedure. Condoms have a reasonably good efficacy when properly used, and is increased significantly when used alongside other contraceptives (not to mention the additional benefits of lowering risk of STIs/STDs).

And just as an added question for you, if these surgeries were not reversible at all, would your views on this change?

We can leave the question of legality vs morality of the subject to the side.