Does not help if no one enforces it. About 10 years back we were on vacation and had to rush our little one to the ER. Since it was a breathing issue and the waiting room was crowded, they suggested we wait outside. Sure enough, then we had to get away from the smokers congregating near the “No smoking on hospital grounds” sign.

Of course the personnel weren’t interested in helping to clear that, and we decided people waiting at the ER were already under enough stress