Drinking on the other hand DOES effect peoples mood, behaviour, confidence etc.
This is what always mystified me about smoking: at least other drugs have some effect, nicotine just gets you addicted.
Edit:
To be clear: smoking has no meaningful affect unless you're already addicted. A non smoker who tries their first cigarette is no more relaxed or confident or calm than they were before.
The same is not true for alcohol or marijuana or basically any other drug people use recreationally...
Heh, I can tell you've never smoked.
I'm not a smoker, but did try a cigar once. Combined with alcohol, it was an utterly euphoric experience. Think caffeine times ten, at least. I quite literally dreamed about smoking for a couple of days after that experience.
Does that effect persist for regular users? Nope. But for non-smokers it can be a very pleasurable experience.
This isn't true. I started smoking socially in the summer and nicotine absolutely gives you a head rush and relaxing feelings. It also suppresses my appetite quite a bit. I found if I just ate and I'm full and then smoke a cigarette it makes me want to throw up.
And on the topic of fun, it is a social thing and you meet all kinds of interesting people by smoking. It's such a great ice breaker at the bar to meet people.
I gave it up because it's winter and I don't go out to bars as much. Plus it's cold and I have no desire to go outside and smoke anyways. I'll definitely pick it up socially again next summer though, it was one of the best summers of my life.
The only reason people are able to keep doing it is because they get used to it, and their body develop a dependency on it.