And we could have legislated better filtration to mitigate the other.
However, the unpopularity of the item, and the fact that the largest effects would be to a minority of the population, makes it more popular to just ban it entirely rather than attempt to mitigate, or compromise on a solution that would allow the maximum freedom with a good success at mitigating the effects.
I'm not a nazi about it. It's a local issue. I don't care what scotland does. If they want smoking in bars, good on them.
In my community, banning smoking in enclosed areas, partcularly where employees have to work, makes good sense to me.