"First, because changing the decades-long downward trend in marriage rates is not very realistic, and swims hard against a tide that exists for some good reasons. Second, because policy interventions to encourage marriage have been shown to be quite ineffective against that tide. Third, though this is not the intention of many marriage advocates, marriage advocacy can make it harder to deepen policies to support single parents. And fourth, because it fails to recognize some of the important gains made by single mothers that push against poverty."Jared Bernstein in The New York Times.