On the other hand smoking in the US has declined significantly in the last couple decades. I would hazard both regulation and more public awareness of the negat

On the other hand smoking in the US has declined significantly in the last couple decades. I would hazard both regulation and more public awareness of the negative effects played a big part. We are still in the midst of the smoking moment for social media and excessive smart phone usage, the ill effects are still not widely known, studied or even agreed upon let alone regulated. Once they are we will see a drop but it will never truly go away. IMO there is an advantage here over smoking for regulators, targeted advertising provides the incentive structure that leads to most of this addiction and that can be regulated.