>Why even stop smoking if it does not stop 100% of all cases of cancer?
If the intend to ban smoking in a population was to reduce the incidence of lung cancer, and the incidence does not drop after smoking ban, then ban was useless.
If the intend to ban smoking in a population was to reduce the incidence of lung cancer, and the incidence does not drop after smoking ban, then ban was useless.
"Why stop hitting people with cars when the people hit don't die in 100% of cases ?"