Interesting, I never paid attention to that. I would guess the number of singles/couples earning $40k/$80k total per year or less and own enough stock to get material dividend income must be miniscule.
And they surely would have a significant proportion of assets in bonds yielding a couple percent rather than stocks, so earning tens of thousands in only dividend income is probably super rare.
https://dqydj.com/net-worth-percentile-calculator-united-sta...