I wonder if some of the difference between the UK and the rest of Europe is to do with the Second World War and the aftermath? Certainly we had cities being bombed, children evacuated, families disrupted because of war service, but that was nothing like the reality over very large parts of Europe. And, of course, there’s been ongoing devastation ever since in some parts.
That could lead to a different attitude of, say, keeping a family together as the top priority, as well as much more experience of providing children’s homes for orphans or displaced children.
Although the war officially ended 71 years ago, maybe the experience of families and communities being brutally broken apart back then could lead, even now, to wanting to preserve those connections if it’s at all possible?