I've come across many. In fact, many is an understatement.
I come across one almost every day.
First of all, there is no law restricting the preference for
garments between both sexes as long they are not exposing
indecently their private parts.
It's quite common to see a butch, a she-male along Orchard. In
fact, I pass by a common group of trannies every weekday.