The data, analyzed by Zillow researchers, showed that 2.7 million adults moved back home in March and April, and that about 2.2 million of them were aged 18 to 25 — also known as Generation Z.

The trend began well before the pandemic for what has been called the "boomerang generation," and these returning adult children and their parents have been known to clash as they face the challenges of navigating their new adult relationships.

Landlords, however, have a problem that family meetings can't solve: lost rent. Gen Zers who returned to their childhood bedrooms in March and April represent lost rental revenue of $726 million a month, the survey shows.