Teenage pregnancies, venereal diseases, dependency on government and murder rates were all going down during the much-disdained 1950s. All reversed and shot up as the welfare state, and the social vision behind the welfare state took over in the 1960s.
That vision featured non-judgmental rewards and non-judgmental leniency toward counterproductive behavior, whether crime or irresponsible sex and its consequences. But relieving people from the responsibilities and challenges of life is doing them no favor. Nor is it a favor to society at large.