For the NLSY-79 cohort, whose mothers turned age 40 between 1997 and 2004, the percentage of children living with both biological parents when the mother was 40 was sinking below the 30 percent level, compared to 90 percent of Belmont children who were still living with both biological parents. The divergence is so large that it puts the women of Belmont and Fishtown into different family cultures. The absolute level in Fishtown is so low that it calls into question the viability of white working-class communities as a place for socializing the next generation.
