I'm sure you're aware of Prohibition, but yes, we did ban that. Didn't work very well, though, and we unbanned it (with a minimum age limit). When smoking's he

I'm sure you're aware of Prohibition, but yes, we did ban that. Didn't work very well, though, and we unbanned it (with a minimum age limit). When smoking's health problems became well-known we only banned advertising (and maybe selling to minors?), so maybe we still remembered the lesson from Prohibition.