I wonder what percentage was fueled by a dual income household being forced to single income and realizing that they could handle it well enough - and the non-working spouse deciding to not bother returning to the workforce?
That's apparently one big driver in the labor shortage. Childcare costs were so high that when everyone was home people realized the second job wasn't actually that useful and now there's one stay-at-home parent (seems weighted towards mothers[0]). [0] https://www.pewresearch.org/fact-tank/2022/01/14/some-gender...
Fewer workers + fast economic growth = labor shortage.