It does seem to be that identical twins are more likely than average to both be trans, but not guaranteed that they will both be trans (trans here is being used as an umbrella term) which suggests that the cause is not 100% genetic, but neither is it 100% environmental (or there would be no increased likelihood among twins), the results seem to be similar to the likelihood of one twin being gay and the other being straight, which also suggests that sexuality isn't entirely genetic or entirely environmental. But not enough twin studies have been done (small sample size?) specifically looking at the incidence of trans IDs.
stickle I can see that, but I view gender ID as part of one's personality, rather than JUST another word for personality. Like there's not one personality trait that makes you a woman, but you still 'know' that you are or are not one.
Ok, sorry, so you get the idea of gender ID being how you perceive your own gender, but not what 'gender' is, like what it is you are perceiving? So like, if you're just perceiving gender stereotypes then you just feel like a stereotype of a gender rather than actually 'being' that thing?
I can understand that viewpoint, although yeh I don't agree. I was not raised 'stereotypically' girly, I wore whatever (clothes marketed to girls and boys) liked various colours, hated pink, played football, liked imaginative play, liked to read...things that are from the 'boy' list as well as the 'girl' list, but I never felt like anything other than a girl. My nickname was fairly gender-neutral and my parents praised me for various things not 'generally' thought of as feminine. But I still felt like a girl.
I don't think that the absence of any part of my anatomy, or presence of any different anatomy, would make any difference. If I woke up tomorrow with a male body, I'd be a very confused woman, with a man's body. If I feel that strongly about my gender identity, I can't see why anyone else would be less 'sure' about theirs. Although I can understand that a lot of people don't really think about it, or think to separate the two. Of course it's super hard for me to 'know' what my life would have been like had I been born with male parts, or if my parents had socialised me as a boy, and I retained my bio sex, whether I'd feel different.
But trans people are saying things that fit with my experience of my own body/mind, so I don't feel the need to question it all that much because it makes sense to me. I totally understand questioning it if you don't understand it, but I'm not sure that questioning people who don't experience it will get many more answers, because it's not coming 'from the horse's mouth' as it were.