Smoking is like the plague in the US. It is becoming increasingly rare and socially unacceptable. At least in NYC, LA, NJ, you can't smoke in a restaurant or bar. I remember smoking in the cafeteria and dorms in college which would never be allowed today.
So, when we travel to Europe it is always culture shock when it comes to the amount of smoking (and drinking) going on. It is truly amazing to watch our German friends and acquaintances talk so much about healthy eating and digestion (but grill their meat to a crunchy burnt crisp), and exercise but then light up and down the booze.
It is a true dichotomy that makes no sense. I suppose they view the drinking and smoking as a social requirement, but it is overpowering and expensive.
I remember when smoking in the office was allowed and cigarettes could be found in the vending machines in every restaurant and gas station for 50 cents per pack. Now, I don't even know what a pack costs, vending machines have been banned, and a carton costs over $100. It is surprising to see that smoking is more common in poorer communities when it is so expensive and has such significant health consequences.
Even in Europe they do try to segregate smokers, but without success. There really is not possible to avoid smoking especially when sitting outside on the terrace of the restaurants, and at any public event.
Europe is ahead of us in so many ways in health care, and energy conservation, but so far behind in this area. At least they are trying to catch up, while we lag so far behind them in the other areas with no interest in even trying to match them.