[marcusverus]

> The portion of double income households more than doubled between 1960 and today[1].

Your data only represents "married couples with children under 18"--a (shrinking) minority of households. By definition it does not account for the dramatic rise in single-adult households.

[ALittleLight]

The single adult households are a separate and bad thing. I don't think there has been a substantial shift in human desires in the last couple generations - most people still want to get married and have kids and fewer of them are. That they are able to subsist in one family households is not a bragging point for our system.