@ILoveeCakes I ask you to consider 'Dave'.
Dave is a man.
Dave is not trans.
Dave is a pint-swilling rugby prop forward who has never has a single second's doubt about his gender.
Dave likes raping women. And girls. He's not fussy about age.
He's careless enough to get caught. But he's not completely stupid. He knows he's likely to be convicted. He knows men in prison tend not to be kind to child rapists. He also knows men's prisons contain no women. So he's facing several years locked up with people who might attack him, and nobody to rape.
Poor Dave.
Luckily, he's in Scotland. So if he changes his name to Davina, and asks the judge nicely, he can be sent to a women's prison. Where the other inmates won't be strong enough to beat him up. And there are lots of women he can rape, knowing they daren't complain because they risk being punished by the authorities if they say there's a man in the prison.
Happy Dave.
After he is released, Dave can get a shiny new GRC and a birth certificate in his new name - which is not linked to his previous crimes.
Or maybe he got the GRC in prison, but once he gets out 'oops!'. He's made a mistake and he really was a man all along! He'd better get another GRC and a new birth certificate again. As George.
Dave then gets a job in a girls school and passes the checks, because neither Davina nor George has a record. And neither has been in the papers for committing terrible crimes.
Dave is still not trans. Dave is just a predatory man.