Well according to stonewall, I am trans as I am gender free / a gender. Because I don’t have a gender, only a sex. And I don’t identify as a woman, I just am one.
Much like many other posters on these boards.
I know a number of teenagers who identity as trans, they attend my children’s school. They are all girls - some are ‘alternative’ and One would have been seen as a butch lesbian 10 years ago. But of course now she’s now a trans Boy and fancies girls.
The school deal with this extremely well and haven’t insisted that these girls are allowed to shower and change with boys. Funnily enough.
And I also know two 20 something kids of friends . Both are XY people who believe they are XX. One is autistic and has recently decided he’s not trans, just a GNC man who is bi.
The other appears to have AGP - they Are very violent and angry and have tried to get lesbians thrown out of university where they study . They're filled with hatred towards all women, especially those who won’t have sex with them.
BTW they come from a perfectly normal functional family with two siblings who hold down good jobs and have happy lives. However the others are scared of their sibling and now have little to do with them. Their teenage years were destroyed By their siblings issues , they are very attention seeking.
I know another trans woman who is very angry and agressive . In fact this is what tipped me off that they were an XY person, as They very nearly pass. In a context where most of the women were troubled, this person stood out because of their anger and huge sense of entitlement.
I know two trans women In a business context, they are XY people in their 50s who do not remotely pass. I mention passing as the Op asked about - I am not suggesting that passing or otherwise is relevant to how the person feels or their own identity .