I consider it as a harmless habit, like eating sugar from a disposable bag of sugar, and more harmless than, for example, picking your nose :) can be physically unpleasant), people who smoke and especially girls, demonstrative condemnation of smokers, you get the idea.
Smoking demonstrates an irresponsible attitude towards one's own health. Accordingly, if a guy is looking for a girl to create a family, and wants to live a long and happy life with her, then his addiction to tobacco will alienate him. If the task is to find a mate for a couple of nights, then this habit will not play a significant role. An exception may be young people who, in principle, hate the smell of cigarette smoke, but we are few of them.
Smoking, being a habit, is not very good from a social position and from a position of a healthy lifestyle. Well, and, accordingly, smoking girls - yes, that's bad. And the smoking guys too. How big is the difference between the first and the second - a stupid question of stupid morality - I don't like it, it means bad. And vice versa.
Why is it bad at once? And if this is in no way - neither good nor bad? The point is, some people like smoking girls. I find it difficult to name the reason. Some people think they are - phew. Well, I personally do not care, if only it would not smoke in my face. Thus, there is no unequivocal answer - which means that you should not get dirty and think whether this is good or bad.
And if you want the majority of society to perceive you positively, then look how it treats smoking girls on average: there were times when girls and cigarettes were perceived very well, many men seemed to like it. Now there is such a transitional period: someone says that it is bad, someone does not say anything. Then there will probably be a period when a girl with a cigarette will be perceived negatively. So watch the mood of the majority, if you do not want the harsh. Or chat with smokers. Then they will tell you for sure that all oki-docs and you are the best and that it is sexy and that the cigarettes you smoke, well, it's just that, well, or at least they won't react sharply to it.