I don't know that people necessarily have to be married and stay married to make the nuclear family work, even if that is the typical manifestation. If two unma

I don't know that people necessarily have to be married and stay married to make the nuclear family work, even if that is the typical manifestation. If two unmarried people have children and contribute to a stable life, then they still are a strong nuclear family even if not bound by marriage. Similarly, if a divorcee pairs up with someone else and doesn't get married, the children can get a de-facto stepparent. I'm going to see if I can scare up some data regarding families in Scandinavia, but I don't think your point necessarily contradicts the parent post.