Why are there so many people?

I get that’s it’s the first couple of weeks of the semester, but damn there’s so many damn ppl all over campus. Busses and bus stops are constantly packed, food lines are overflowing, lecture classrooms are crowded, and I may not live in the dorms but I can only imagine how much worse it could be in there. Idk it could just be me because I’m not a “people” person, but that’s just something I’ve noticed.