Marijuana use does not result in a physical dependency. Its addictive like gambling is addictive to some people, in that people may have a non-physical compulsion to do it. Compulsion oriented people should probably avoid marijuana. But what I find interesting, is I'm what you might call an incredibly compulsive person. I easily get addicted to things. Gaming, cigarettes, caffeine, etc. I have a tendency to be overindulgent. However, that has somewhat reduced as I've aged.

Still, even with that, I've never become addicted to marijuana. Or gambling for that matter, but thats just because I'm a miser.