"keep certain parts of yourself private" is not the same as "pretend to be something you're not in every aspect of your life except when you're alone"
and being trans is not about attention-seeking. transvestites might sometimes do it for attention, like some drag queens. but actually being transgendered isn't. what trans people want 99% of the time is just to be able to blend into society as whatever gender they are. yeah i get a lot of dumb comments when people can't tell what sex i am, but i definitely don't ask for that and while i'm not offended by it, i also don't want it