I don't think we can discount the differing ways that children are actually brought up in countries within Europe, other than UK.

Go to Italy, Spain, France, Greece etc etc... in the evenings you see children out with their parents. They start school earlier in the morning, they finish earlier in the afternoon and they have their siesta.

They are taken out to eat in restaurants as part of the family, not stuck at home with a 14year old babysitter while their parents socialise elsewhere.

Children in the UK are not taught how to act in company. They are generally dissuaded from being with adults in the evenings. Reap what you sow.