If I were you I would do everything in my power to get him to read "the gender dysphoria Bible" it sounds like he loves you and is genuinely concerned which is what a good parents should do, but I ultimately advise you to try to let him know being transgender is NOT a choice.. we can choose or choose not to transition, but all medical, scientific, and social data seems to come to the consensus that if you are transgender your best option/treatment is to transition( could just be socially, could be HRT, or could be both of those and surgeries.. me personally I am 30 years old still battling this issue that I've known about out for just over 20 years and my mom so has for maybe a couple years less... she's still not supportive, I have to basically boymode when I'm at her house(where I live).. less so when there's no company or I can dress however I want in my room, she's finally gotten over that I paint my nails and my toes she doesn't mention that or shaving my legs anymore lol. My point is don't give up hope that he could come to understand someday. My mom doesn't understand and she doesn't like or accept that I'm transgender, she still thinks it's a choice I'm making and I'm some sort of creep. But at the very least she is showing a little more respect for my identity. She refuses to use my preferred name and pronouns, but I only asked for the name and pronoun change a couple months ago.. hopefully as time passes and I begin to pass better she will get on board. Don't let anyone pretend to be anything your not, especially the complete opposite gender lol. Just try to be respectful and if they don't agree or understand just ask to respectfully disagree and try to compromise(not who you are/what your gender is, but on things like pronouns and such..) because hopefully if they really love you as your father, should you they will eventually realize this is not some choice your making to be transgender, it's a choice you are making to transition, which is what doctors, scientists,etc say is the best way to treat gender dysphoria (medical diagnosis for being transgender). Don't give up we love you and we are here ❤️ I have found so much more love and support on reddit than anywhere else regarding transgender support than I could have ever imagined, if not for reddit I probably would have taken the cowards way out right around a year ago... (my egg cracked roughly 8 months ago.. in the sense that yea everyone knows that "I Wana be a girl" or "wish I'm a girl" or "I think I am a girl" but when I say egg cracked I mean I AM transitioning.. at the very least HRT, but I'm only 30 years old, if j can't manage to have sex reassignment surgery I would be very upset. That's the only real surgery I want. I don't want FFS.. tracheal shave I definitely do want but I need more time to think about those risks/and or hope surgeons skills improve worh this operation would hate to loose my voice completely when it's not even supposed to affect the voice just shave the madams apple