...For voluminous research shows that further down the social scale there are millions of people who long to marry, but who are trapped just beyond the outskirts of matrimony. They have partners. They move in together. Often they have children.... The research shows that far from rejecting traditional marriage, many people down the social scale revere it too highly. They put it on a pedestal, or as Andrew Cherlin of Johns Hopkins puts it, they regard marriage not as the foundation of adult life, but as the capstone. They don’t want to marry until they are financially secure and emotionally...