One little talked about issue we all face is how we are "dehumanized" by people. They will touch your breasts and ask if they are real, they will say things like 'are you cutting if off? and of course will you "do guys"...
IMHO its another example of how our situation is totally incomprehensible to them..we all know how incredibly deep the the feeling of gender really is...without thinking of it, so do they...gender just is, and its immutable
We've all lived through how difficult it is even for the most supportive people to 100% get our genders right..its not their fault.. we are literally outside of human internal understanding, and so among other things, we are de humanized.... and the things they CAN understand...balls, penises, boobs, sex, and the dreaded "transformation" all hold deep fascination for cisgender people
i don't think there is really a whole heck of alot we can do about it...its not an education thing.