As my profile picture in the Mudcat gallery shows, it's hard for many people in the folk world to make the change convincingly - or at least it is for the average Middle Bar Singer. Though the enthusiasm with which many would approach Women's Night leads me to believe that there could be many closet transgender types waiting to come out!
Seriously, however, the original question is an impertinent irrelevance on a public forum, and probably says more about the poster than the issue itself.