Standards of parental attachment, caregiving intensity, early childhood enrichment, and quality time with parents outside of working hours are radically different today than they were in the 1980s or the 1970s. The 1970s were not a golden era of intensive mothering; in fact, in a lot of ways, the norms of early childhood parenting we know now are reactions to 1970s parenting.

At any rate, I was just making a comment about the prevalence of multigenerational caregiving. I would contend: it was also not a major thing in '70s and '80s America (though it probably was much earlier in the 20th century, and in other countries).