You're aware that hormone therapy can cause increased risk of blood clotting, bone loss, eyesight loss, memory loss, suicidal thoughts and depression, erectile dysfunction, infertility, heart attack, and a number of other adverse side effects -- right? And you want children to just be able to go into CVS and buy it for themselves?
I think all persons should have autonomy of self.
So, just to be clear, you want a child to be making its own medical decisions?