Why is it necessary for people in my age group to do this?
For example, my school.
Quite a lot of it happens here, right now i'm typing on a computer that has about two keys torn off, the door of the room has "poo!!" scribbled on it, along with some jewish symbols and a snake, there's also a toilet in the school that's literally full of snake drawings, the urinals have snapped at one parts, and are being filled with garbage, and there's literally 5-day old piss still stuck in it, since it's blocked and none of the janitors would even WANT to clean that up [Not that i blame them, it's disgusting to see]
But yeah, vandalism made my school pretty stuffty.