To be fair, there were people I gravitated to in each group. It was just there was a general atmosphere of everyone being on good terms with each other and there always being something to do across more or less my entire school year group, plus people from other schools.
My last year of school I was still convinced that anyone able to juggle friend group larger than 10 you were a dangerous sociopath
The one who does the Birdman hand rub and the lad with the mullet are a lot better than the others.
It didn't last long. You're never really in another situation like that where you see that many people every day once you leave school.
I have a surprising amount of friends still living with their folks, think its a generational (late millennial) thing