First time coke users usually can't see that it does anything. It often takes a half dozen times before people actually learn to distinguish the high.
I'm thinking about cocaine --- and like I said -- I don't know first hand but that's what cocaine users tell me --- it's the lie of cocaine they say --- that it makes them feel very good the first time but not after that. I doubt many crack or cocaine or many other drug users actually tried to become addicted --- and addiction for many is the first time --- that's what leads to the second time, and the third time and so on. But yes I realize many people can likely use cocaine, crack, heroin and the others many times without becomeing addicted --- but for many others they are hooked right off --- which is why there is so much easy money for the narcotraffickers.
Also --- I would really think that something that cost alot that did nothing for the first half dozen of times would inspire so many to go on and become addicted. That's why people don't get addicted to styrofoam or wheat flour. You're not going to say "gee this stuff did nothing for me --- I guess I'll buy more and keep on trying, I'll get addicted someday somehow".