The problem with us all trying to lump parent/non parents into one demagraphic is that there are always exceptions to the rule. The Spanish/French example has been used before and that is true for them. Here in the UK unfortunatly a lot of people who would go to the pub in the evening with kids will do so to get drunk thereby giving their children the impression that that is OK. There are the other parents who will go out to enjoy themselves, take enough entertainment material (i.e. drawing books etc) to ensure that children are catered for and all have a decent evening. I feel that dependent on the individual pub the two types of parents may not share the same pub and that's where you may meet the sullen/intimidating response to asking their spawn to keep it down.