Mainly the constant body shaming. People expect you to have a perfect figure and hair and wear short skirts, tank tops and tons of makeup.
I’m happy in jeans and a Tshirt as a rule, and for some reason that makes me weird.
I’m also not interested at looking at other people’s photoshopped bodies on Instagram, and less so in posting my own.
Also, girls my age think that you can’t have a friend of the opposite gender without being in a relationship with them. Just a couple of weeks ago, someone saw me talking casually to a guy at the bus stop, and the next day my whole year (most of whom usually pay no attention to me other than to copy off me in tests) were obsessed with the fact that I was apparently in a relationship.