I agree with some parts of your statement, however, others? Not so much. But nothing wrong with it either, you’re still just a little ignorant on some things. Ignorance should not be looked at as a negative, because you can always learn. :-) However, I would suggest maybe trying to meet, or looking up trans folks, because not all of them transition into traditional or stereotypical versions of men and women
Just as the video says, just ask. When in doubt, ask.