I don't do any of those things and i'm perfectly happy. I dispise smoking, it has ruined the lives of many of my family and it's expensive as hell. I drink when i go out, i just dont often go out, i prefer to hang out with just my friends. Casual sex i am opposed to both because i find it dishonorable(yeah, i'm old fashioned, deal with it) and for a couple of practical reasons. Drugs are dangerous for the most part, they inhibit your senses in ways that can get u hurt, and can kill you outright. cocaine will eventually kill you as if from an overdose, even if you use the same dose every time. It has something to do with the part of the brain it targets, repeat stimulations will weaken it, reducing the max dose you can safely take. and i don't see the point, i have more than enough fun without drugs. I have plenty of fun without doing unhealthy and possibly dangerous things to my body, I'm happy without it, so why take the risk, even if it is minimal.