In America, I frequently found people telling me various things.
"Asian hair is different and therefore more difficult to cut than white hair."
"90% of Asians are lactose intolerant, so you'd better watch how much milk you drink."
"Asians produce more earwax than other people." etc etc.
Invariably this was told to me by a white person. What I want to know is, why the hell didn't I know that Asian hair, Asian ears, Asian lactase enzymes are different than other people's? I am Asian, shouldn't I know? What the hell's wrong with me for not knowing? And most importantly, how the hell do random white people know more about the details of Asian physiology than me?
Perhaps instead of that talk your parents are supposed to have with you about sex, they should sit down with their kids and have "So you're Asian" talk and all that this entails.