Conformity

It seems like the more and more I pay attention to people the more and more it seems like people are conformists. Like, you know when you're in a large group and everyone seems to like the same things and do the same things and wear the same things and listen to the same things and UGH! You get me? And anything even slightly out of the ordinary is defined as "Weird"? What the heck is "weird" mean anyway? What exactly is NORMAL? I don't see how we were all made different but everyone seems to have this weird set of guidlines to follow, an unspoken rulebook of things that are "normal". What's so cool about conforming anyway?
Please if you want set up a list of things and explain this whole wanna be the same as everybody else mindstate because I just don't get it at all.