I've always thought before that all illegal drugs are simply bad all the time. Personally, I have no interest in trying any drug and I sure I ever will. I'll have a drink now and then, beer, wine. I've tried a few more exotic things when I have been out. But I have no interest in finding out what its like to be drunk. If I were challenged to a drinking contest, I would immediately forfeit.
Now, I still think weed is probably mostly a bad habit, but maybe not any worse than cigs. I watched part of a program on the History channel last night about how drugs became illegal. Weed was legal during prohibition. But later weed along with many other drugs became illegal and sometimes the motivation wasn't simply because its harmful to the users although I don't think that can be denied for many drugs. A few months ago I was with a few ex-JW friends and a couple of them decided to smoke a little weed. It didn't seem to be the horribly negative experience that it is sometimes made out to be. They smoked a little, got a little giggly, but as far as I could tell this was not a regular habit for them although they were both experienced in its use. They're both responsible people on their jobs as far as I can tell. If a person uses it occasionally and doesn't become addicted or allow it to affect their work, family life, etc., I can't see how its any worse than people addicted to cigs or alcohol. I can see a lot of drunks and alcolholics doing much worse in their personal life due to psychological dependence. And some people have much stronger addictions to cigs.