Smoking cigarrettes. It starts as a social thing. The "cool" (stupid) kids were doing it, the somewhat less "cool" (but just as stupid) kids wanted to be with the cool kids, so they started smoking aswell. Then it turns into a completely useless addiction that stays with them for life and makes said life significantly shorter. And stinkier. Cool, innit?
Drinking alcohol. What the f**k? Ingesting pints of brain-numbing, nauseating, aggression-inducing poison just to be social? It's disgusting and idiotic. And yet almost every single person does it.
And funerals. f*****g funerals. Hey, friends and family of the dead guy! Let's put make-up (and don't get me started on how stupid make-up is) on his corpse, put it in a really expensive wooden box and get together and mope around it and then put the box with the corpse in the ground where it does no good what-so-ever! s**t. After I die, I want my body eaten by vultures (I'm not a vegetarian, so I should at least be kind enough to give something back to nature), with no get-together of any sort connected to it.
f**k it, all ceremonies are stupid. Weddings (the more expensive, the stupider), child baptisms (deciding that a newborn child with no concept of religion and no choice in the matter belongs to a church is cruel and immoral - and some people even baptise their children without even being religious themselves just because it's tradition, and that's just f*****g stupid), and so forth. And anything where people are expected to act or look a certain way is evil.
Oh, and shopping just for the sake of shopping. I have no idea if that's a social thing or whatever, but NOBODY NEEDS TWELVE PAIRS OF SHOES! If you've got enough money to spend just for the fun of spending it, give it to me instead so I can buy a ticket the f**k out of this limbohole and go study film in Canada.