Well, yes, but the question is whether or not she (he) needs to do this to be happy, or is she (he) doing it because of the reasons Burney nicely summarises in the post above? Is it just attention seeking, power seeking, narcissistic behavior that is encouraged by the current obsession (for no particularly good reason that I can see) with trans rights?
Knowing the girl (boy) herself, it would surprise no one if it was the latter. She lives in Vancouver, the politically correct capital of the most politically correct country in the world. There is zero question in my mind that this played into it.
I think if I was going to switch over from being a chick to a bloke I would go for a more exciting name than James.
Something like Clint or Snake
Children cutting off / sewing on genitalia on a whim is probably not something that should be encouraged, in the same way that experimenting with setting the house on fire should not be encouraged even if playing with matches makes them happy.
I think there has been an instance when research into the long-term effect of sex-change operations on the young was suppressed by a university, in case the results went 'against the paradigm'.