So just as their bodies go through hormonal changes that will affect them for life you suggest medically giving them horomones to suppress their biological ability to reproduce.
Somehow that doesn't seem healthy.
Yes... if they need it! A^nd they are the ones to judge if they need it...
I am a realist... You seem to believe you can convince them... As I said it hasn't worked since the dawn of humankind... So why do you think you can change that?