As has been illuded to, here in France parents bring their kids everywhere with them. The difference is that French parents teach their kids to behave properly and bring them up in a 'cafe society.' Most French kids are a real pleasure to behold. They are part of the group and there is a clear, mutual respect between youngers and elders. It works well.
Yer average Brit kid in a Brit pub is, more often than not, just a pain in the arse. It seems that everyone else is just expected to put up with other people's brats. More, in fact. The British public is expected to make all kinds of extra allowances and bend over backwards to accommodate spods, with no sense of social responsibility whatever from the parents.
Drown them at birth! The UK is over-populated anyway.