I think facts about the effects of smoking cigarettes has played a much bigger part in that (in the U.S.)<p>In Korea (where I live now), however, heavy-handed regulation aiming to make it &quot;the most difficult place in the world to smoke&quot; is probably going to curb rates quickly and dramatically: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Smoking_in_South_Korea" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Smoking_in_South_Korea</a>