I'm not american and went to an all girls' high school (it's really weird to me how they separate boys and girls tbh), but even though we didn't have all of these stereotypes (we had no sports teams and there were no homecomings or proms, which tbh, I always wanted because I liked the idea of a dance lol), there was still some of the stereotyping going on! There were the very quiet and/or studious types who got called "nerds" (my best friend got this fun moniker) and if you were either rebellious and/or into fashion and had a boyfriend but weren't one of the rich kids, you got called a "slut" (this lovely gem was bestowed on me lol).

my son assured me that the only way he and his friends even know those labels is from watching movies and paying attention to pop culture.

I choose to find that hopeful. I love this. A person is way more than one interest or personality trait, those labels are so restricting, even the ones that appear to be less insulting, they're still really putting people unfairly into boxes!