Again it all comes down to why people feel the need to find a category to fit others into. We don't need one for, say, guys who virtually always wear a t shirt and jeans when in casual situations. Or girls who wear skirts or dresses as the last possible fashion choice. Or old women who feel the need to wear some sort of hat whenever they go out. Or soldiers or policemen who prefer to remain in uniform even when not on duty.
We don't need categories to define people by what we wear. That's the reason we have so much trouble with the general population in the first place, it's not a good idea to perpetuate the mistake by continuing to create new 'boxes' to fit people into.
I don't want to be called a crossdresser, transvestite, transgendered, transsexual, heterosexual, homosexual, or anything else. I want to be called Alex, or when here, Lexi if that's what makes you comfortable. But creating more labels, or even promoting the idea that they are a good idea, is not conducive to progress.