How did that happen?

I think I was completely emotionally unprepared for High School. I remember being surprised that some kids were... joining the football team and, for the love of all that's holy, becoming cheerleaders. They were massively buying into that whole thing.
What was I expecting? Some sort of enlightenment where the students took over and created art or something?

I mean, what was going on? I thought we were all beyond that. It was like the principal telling us that we were going to have a segregated school.
Really? You guys I knew in elementary school are now on the football team. So you don't talk to any of us anymore? The striations of social positions becomes suddenly engraved in stone.
The "cool" kids ended up striated into different camps.
I totally didn't think that was going to happen.
UPDATE: I should stop watching Buffy the Vampire Slayer.