@rabeel, if this will help to get them quit smoking, it will really be good. I know how some persons will react when you told them that smoking is bad. I even told some body some time past, he replied that his dad smoke through his life time and nothing happened. He told me the father got to 90 years before he died lol. You can see how humans reason.
I will be happy to see this touching the heart of the smokers and I hope they change.
Yes its true people always give such arguments just for blind self satisfaction for their ego. Thanks @tfame3865 for your feedback.