If you have better data I'm happy to look at that. I agree that cohabiting are likely more common now and it is possibly more common to get married just after birth than it used to be.
Table CH-1 from this census website shows that children living with a single parent goes from 10% in 1960 to 36% in 2020. (=E13/C13) I'm not certain but I think they are accounting for cohabiting parents here because they don't use any language related to marriage and the census could tell if the parents were cohabiting or not.
Table CH-1 from this census website shows that children living with a single parent goes from 10% in 1960 to 36% in 2020. (=E13/C13) I'm not certain but I think they are accounting for cohabiting parents here because they don't use any language related to marriage and the census could tell if the parents were cohabiting or not.
https://www.census.gov/data/tables/time-series/demo/families...