I am not going to bang on about smoking this time. The Fat Bigot has already posted an opinion I agree with absolutely, and Frank Davis reveals another antismoker scam.
Most restaurants were non-smoking or restricted-smoking before the ban and there's a reason for that. Smokers often like a smoke after a meal. We, just like non-smokers, don't generally like smoke billowing around during a meal. So it's no hardship to have a non-smoking restaurant or to have an area smokers can sit in after the meal, away from the still-eating people, for that after-nosh smoke.
Nobody can smoke and eat at the same time anyway. If you can do that, you have too many holes in your face and you'd better start saving for surgery.
Pubs are different. I can't hold chopsticks or a fork in one hand and a cigarette in the other. I don't enjoy a combination of smoke and Hoi Sin. With a good malt whisky in one hand and a cigarette in the other, I am content.