To be fair, smoking is a scapegoat for many of society's ills, and most of it is not deserved. As far as marijuana, the reason it's illegal has nothing to do with its effects. It has to do with the fact the government hates hippies and therefore makes illegal anything that they associate with hippies. It's one of the few issues the right and left meet on. Marijuana itself will not kill you or give you cancer (okay, it might, but then again, so does chewing gum, so you really have to take that with a grain of salt) and the only real reason to restrict it is because of the inebriating effects it has (similar to alcohol in many ways). I believe that if marijuana was just controlled in a manner similar to alcohol, there would be no problem. The fact is, people who want marijuana are going to get it whether it's legal or not.
As for smoking period, I happen to enjoy Garcia Vega cigars (mostly Royal Coronas in the beige tubes) from time to time and I happen to know many smokers of everything ranging from cigarettes to weed. Much of the country uses these things. To say that if you need it you are a loser is not fair. Maybe people should be able to get by without it, but everyone has their vices. People should also be able to get by without living a second life on a Star Wars web forum, but here we are. Think before you judge.
As for smoking llamas, oh man, I gotta try that now.
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He has a powerful weapon
He charges a million a shot
An assassin that's second to none
THE MAN WITH THE GOLDEN GUN