re: Cigarette legal age moving to 21

I've never smoked a cigarette in my life. But I have often been skeptical about the medical cost issue. Last year I found a study that showed smoking saves the non-smoking public money in the long run.
Sure they die of diseases. But so does every non smoker at a later date in life than a smoker. The elderly need medical care more often and for longer periods than the smoker with lung cancer who dies at 60.
And then there is social security.