It seems really shallow, but... thinking of my two old TW friends who might have influenced me - one is that incredibly rare thing, a TW who passes well (not perfectly, but you'd have to look closely) and is actually very feminine and rather beautiful... but doesn't dress like a hooker.
The other doesn't pass at all, but has the advantage of having been a rather short and slightly built gay man who can do feminine mannerisms well. And also doesn't dress like a hooker, but in age-appropriate female dress.
And both of them would say in conversation, yes, I'm trans, I was born a boy and hated my male body and I have to present this way to be comfortable.
I didn't have that initial clarifying experience of encountering some big burly 50 year old bloke in fishnets and a leather mini, insisting that he really is a woman while being the most stereotypical man ever.
There aren't many things as clarifying to the mind as a man in the grip of a fetish.