I am a man. If I wanted to become a woman, I could take estrogen to make me more feminine.
Why can't I take testosterone to make me more masculine?
Women may legally use exogenous estrogen as a form of birth control. Just go into a doc and get a script.
Men may not legally use exogenous testosterone as a form of birth control. In theory, some doctors will prescribe it. But based on my and others experience, I have two words for you: Good luck.
Whose patriarchy is this, anyway?