My landlady has a grandson who is 16 and has started hormones as he is going to become a woman.
I know someone who is also doing that. They are undergoing reassignment surgery tho which is different i think
I respect a person for doing so but at 16 is your brain really developed to know that this is what you want?
i respect that as well, it cannot be easy and i am sure intense physcotherapy is evaluated first 
I think a lot of psych therapy would be needed.  It is a big change.  But my landlady is very liberal and fully supports him.
Thats great to have support. Is he trying to change his gender as far as living as a woman before the medical procedures
Yes and there are three other students at his school that are doing the same, well four.  One is going from female to male.
a desire to live and be accepted as a member of their identified sex, and if a person experiences impaired functioning or distress as a result of their gender identity.
Terminology.
Terminology Origin and use.
Norman Haire reported that in 1921, Dora R of Germany began a surgical transition, under the care of Magnus Hirschfeld, which ended in 1930 with a successful genital reassignment surgery. In 1930, Hirschfeld supervised the second genital reassignment surgery to be reported in detail in a peer-reviewed journal, that of Lili
’re looking at. For him he thinks, 'That's great, terrific! More time for us; we can travel.' But for her it's, 'Well, I don't know how to be that person. I know how to be this person, who's someone who's wrangling kids and busy doing things.' But her challenge I think is going to be to find out who she is as one half of a couple, as opposed to being the hub of a wheel." The