Dr. Annie O. answered 05/23/21
PhD in Anthropology specializing in Cultural Heritage Studies
What are times in history when adult children returned to live with their parents?
https://web.stanford.edu/~mrosenfe/Rosenfeld_live_Indep_MFT_magazine.pdf
Why is the tradition of adult children living with their parents after marriage a normal part of some cultures?
What are trends involving Baby Boomers, as the most populous generation in a time when Social Security is threatened, in terms of economic wealth transfer to their Millennial children and the forms it may take?
You might also consider the exhorbitant cost of college tuition, increasing demand for graduate school degrees in the workplace, and devastating effects on the workplace even before COVID.
This is a huge question that could fuel a PhD dissertation.