Honestly, I had alot of fun after drugs that i've tried. Some of my best memories are about drugs but I realized that my best decisions, best memories, best actions took place when I was sober.
I can have fun without drugs, I can chill without them, I can calm myself in a matter of minutes so why would I take any drug to help me with that? I just think its pointless if I can do all of it by myself. Its kinda the same about gym or sports - some people take drugs or steroids to take shortcut. I wouldn't be proud if I would win gold medal knowing that I didn't achive it by myself. It would mean that I am nothing.
There are also people who run away from problems by taking drugs or drinking like crazy - for me those people are not even close to beeing adults. They are cowards, scared kids in a shell of an adult.
And about those real junkies who live just to take drugs - I would buy them drugs or give them for free if I could. I'd let them take more than enough. If They're living to waste their life then I would help them achive final point of wasting it.