The Childless Millennial

"The authors also found stark differences when they parsed the data by race. For Hispanic and black women, the majority of the fertility decline was explained by falling birth rates among unmarried women. That's generally considered a good thing, because while most single mothers do an admirable job, they are also more likely to be poor, stressed-out, and feel regretful. If more women are waiting until marriage to have kids, they might have an easier time of parenting."

http://www.theatlantic.com/health/archive/2015/04/millenials-not-having-babies/391721/