Do they have to swear on a stack of Bibles that they “identify” with the Opposite Sex, or is it based on the Honor System?
You can change your address, you can change your name legally, you can change your political party affiliation, but all of them require that you go on the record and make the claim.
Sexual identity is “fluid” now so you can whip it out where you want and let your freak flag fly different days different ways.