yitzchokm- why are you only raising the point re lung cancer? That’s not the only smoking related illness. There’s a long list of illnesses as well as other conditions which are worsened by exposure to secondhand smoke. Asthmatic people often have attacks triggered by passing someone smoking on the street.
Even worse- miscarriage and birth defect rates for babies whose fathers are smokers are more than twice the rate of babies whose fathers are non smokers. Smoking kills thousands of unborn children every year. Many men laugh it off but it’s an absolute fact that a father’s health will affect their future children’s health.