I know I’m back to basics again but:
You cannot identify as another age - at -16 everybody believes they are an adult but if they pass as 18 they are breaking the law buying alcohol.
Transracial - Rachel Dolezal is dismissed as a fraud, a bit strange but not to be taken seriously.
You can’t identify as a disabled person and claim benefits. If you are not genuinely disabled you will be prosecuted.
You cannot change age or race but you can change sex?