Actually I'm really happy that I was informed from my young age that smoking decreases my life expectancy. I never smoked in my life (except once-twice for tryi

Actually I'm really happy that I was informed from my young age that smoking decreases my life expectancy. I never smoked in my life (except once-twice for trying it out). I wish I knew this for air pollution as well, as I didn't care about it, and now I'm feeling the consequences every day. Just the fact that smoking can lead to cancer is a recent development that improved the lives of so many people, it's statistically significant in the average life expectancy of the human race. But to get here it took fight from many researchers, regulators and non-profit organizations. This has nothing to do with common sense. One more thing: have you seen the video of the child who's smoking at 2? Is he doing it because he's lacking common sense?