Are families different?

I read an article titled Red Family, Blue Family which I would like to discuss. This article centered on three issues, first was marriages, then children born out of wedlock and last was about abortions. These two law professors wrote a book dividing people in groups. They then gave each group a title. It concluded that people with a college education or degree normally have the best family life. Many wait until later in life to marry and only have a few children. It seemed to imply that middle income family do better that higher or lower levels. The webs address iswww.nytimes.com/2010/06/10/opinion/10douthat.html.