That would be a great solution, and the restaurants should have the space to make that work since most had smoking areas and now don't. Seperate the adults that want to enjoy a quiet meal from families that have children that likely won't be so quiet and not always well-behaved.
Funny. They used to have separate eating for blacks.
Now we are so enlightened, we have separate eating for smokers/nonsmokers and want separate locations for kids/adults
My kids are well-behaved. If a screaming nuisance was at the next table I would ask the waiter to move us and if he could not, I would leave. No need to be an a-hole over a plate of bland pasta.
PS - too many crusty old (and old at heart) people look down on "breeders" and inaccurately believe they were litle angels when they were young. There's a special circle of Olive Garden reserved for folks like that.