I think ppl do extensive research into this kind of stuff. At the end of the day, its their life dude, just like how ppl get cosmetic surgeries I think they should be able to do what they want free of scrutiny.
I have trans friends and I can tell you for a fact they dont have any idea how bad or how dangerous the procedure is, or was. Thats why I think she should have been better informed before doing it. And I have a friend who is trans also and he already regretted changing, due to the fact the medication and stretchers being too much for him