A ton of factors, but there is some reason for hope. The smoking rate among US adults has been dropping at about 0.5% per year more-or-less consistently for dec

A ton of factors, but there is some reason for hope. The smoking rate among US adults has been dropping at about 0.5% per year more-or-less consistently for decades, and is currently well under 20%! The ads, regulations, and outreach you're talking about are working, but major societal change is slow. Remember, in the 50s, the smoking rate was nearly 50%! Dropping that rate by half in less than one lifespan is pretty good, I think. http://www.infoplease.com/ipa/A0762370.html http://www.infoplease.com/ipa/A0762370.html