The most powerful force driving religious participation down is the nation’s recent retreat from marriage, Princeton sociologist Robert Wuthnow notes. Nothing brings women and especially men into the pews like marriage and parenthood, as they seek out the religious, moral and social support provided by a congregation upon starting a family of their own. But because growing numbers of young adults are now postponing or avoiding marriage and childbearing, they are also much less likely to end up in church on any given Sunday. Mr. Wuthnow estimates that America’s houses of worship would have about six million more regularly attending young adults if today’s young men and women started families at the rate they did three decades ago.
