I see what you mean, but to me the purpose of outside dining areas is so that smokers can smoke-- how else can they eat out? Apparently nothing is more satisfying to s smoker than an after-meal cigarette. I don't eat outside because of it. I live in an apartment complex with interior common halls, and it's really bad when you have a heavy indoor smoker living in your unit, ugh. And the worst of it is that they have a patio they can go out on, but I don't because my place is an efficiency. Now if anyone has a right to breathe clean air anyplace, it's in their own home.