Should we ban smoking in all public places?

Should we ban smoking in all public places (your advices and comments really need my letter my english class`s guys and girls !) good luck my lttr :)

There are so many people who smoke among our family, friends, relatives, workers and also celebrated roles that we enjoy. For mongolians it`s not false that one thirds of total population smoke. Recently in developed countries it`s banned to smoke in public places and there are many smoking room for smokers. However, in my country there is no effort against the smoking except some official places generally. I didn`t critisize the sociaty and accuse of students but did to explain todays conditoin of or sociaty truthly. This is my main goal. I`m a student today. It`s serious trouble that so many students smoke near their university and at the corridor of the school. For night clubs, streets and game centers smoking is more and more dangerous thing.
In recent days smoking among girls is ever increasing and it`s frightening my opinion muchly. It seems that they pretend as like proud and stately when they smoking cigarettes. It seems that they are acting because of the example in the past of american and europian women, who are rich and beautiful smoke using long and narrow thing. For example of is as for rethorica showing their inner wrist when they smoke attract men and maybe they express their enter opinion trought their eyes. Acting this move seems like attracting other sight for them. From the point of smokers smoking isolated aera from others and in small and boring room gives them negative pleasure. I think it`s said that smoking cigarettes is mental affair but choosing place to smoke is more than from it.
As far as i know people who next to person who is smoking poison ten times more from the first smoker and smokers shoild understand this. Finally every smokers thinking about the other people`s pretension interests to use poison in the right way . (according to legal) It`s maybe small thing but every big things begin to small things. (we don`t forget it) Maybe it`s the one way to develop our sociaty. And also it`s said by Adam smith `` every person should do what they can is significant to the development of the country`` .
Thank you for your sparing some time for my letter :)