Totally agree with you @dreamingbohemian.
I do believe kids behave quite similar everywhere. Perhaps the general acceptance that children will be there also changes the overall envrionment, so everybody is looking after kids, instead of ignoring them/getting drunk/etc.
I never took my kids to the Pub in the UK once I realised it was really not a great place for kids. But they have been out with me until 3 or 4 am many times in summer in Spain. It would not occurred to me to leave them behind.
In brief, my perception is that this is not so much about how people behave, more about a particular culture around drinking and separation between adults and children.
On the other hand, I have never found so many exciting possibilities to enjoy with kids as I have in the UK. There are many spaces designed for them; something I don't think is true elsewhere.