Smoking in restaurant is just not on. It must not be allowed because it is rude, harmful to others and dangerous for the smokers. Firstly, smoking in a restaurant is impolite. The smell of the some affects all people and can turn them off their food. People pay to taste good food and not to be put off by foul smelling smoke. Another reason smoking should not be allowed in restaurant is the harm it can do to others. Passive smoking that is breathing in smoke made by a smoker can lead to asthma attacks and even cancer. Finally, smoking is dangerous and health risk to the smokers. Cigarettes cause heart and lung disease and people should not smoke anywhere, not just in restaurants. Therefore, smoking in restaurants is impolite, harmful to others and a health risk to the smokers and should not be allowed in any restaurants. What is the purpose of the text?​