Should smoking be banned completely?

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It has become fashionable in the world today to condemn smoking. However,although I feel that smoking can be harmful,I do not think it should be banned completely.Let me deal first with the positive side of smoking. First, smoking undoubtedly helps many people to relax.For some, it even improves concentration. Many people like to smoke before exams or when they are relaxing with friends. A further point is that governments throughout the world make huge profits from levying taxes on cigarettes.This provides funds which are used for building schools,hospitals and other public amenities.The tobacco industry also employs tens of thousands of people throughout the world.Without cigarettes, these people would have no jobs.I would also argue that people should have the right to choose whether they smoke or not.People should not smoke in a room where there are non-smokers but surely they should be free to smoke elsewhere.The arguments against smoking are well known.Smoking has been shown to be dangerous to health.Heart disease, bronchitis and lung cancer have all been linked.A further issue is that smoking costs governments millions of pounds because of the large number of people who need treatment in hospitals for smoking related problems.In general, I think the world would be a better place without cigarettes. However,the decision as to whether to smoke or not should be for each individual to make.