It used to be that an overwhelming majority of Americans married, and an overwhelming majority of American children were raised within two-parent families. Over the past six decades this has changed. Now, roughly 40 percent of children are born outside of wedlock and about a quarter live in single-parent homes. The share of Americans who are married has fallen significantly since 1960, with a further decline portended by the marriage rates of the younger generations.
But it hasn’t changed for everyone. The rich and well educated still marry — not quite at 1950s rates, but something close. It’s the poor and working class and (increasingly) middle class who don’t.