Hubble
VIP
I'm not ignoring the rest of your reply, it's because it doesn't matter. Transgendered people do not believe they are little girls, that's not what being transgendered is. Your worrying about something that you will almost certainly never come across in order to make sense of your prejudices, I don't live like that.
Some do, it's documented. And I do come across transgender people and I don't have a problem when they've made up their minds but until then you can't tell the difference between a cross dresser and a genuine transgender.