[Marsh.]

To be fair, that is a grey area.

Someone who has legally changed their sex/gender or had reassignment surgery it is relatively simple to treat them as their assigned/preferred gender.

Someone who simply chooses to wear clothes traditionally worn by another gender shouldn't warrant moving to a different prison. Opens the floodgates for anybody to say "I'm not legally this nor made any actual changes but I would like...." It's a farce tbh.