> $20k is not quite enough, but I can tell you that I lived the life of my dreams on $25k a year from 2016-2018. If I could guarantee that lifestyle forever I would take it over my current $300k+ job in a microsecond.
But government policy (even that notionally of a Constitutional character, which most UBI proposals wouldn’t be) isn’t a permanent guarantee (see abortion rights for a recent example), and if that was really true, it doesn’t take long living a $25k lifestyle on a $300k income to be able to save and make yourself a firmer guarantee of a $25k lifestyle forever than government policy would ever do.
Approximately no one does it, because as much as people making lots of money might rhetorically appeal to the attractiveness of such an idea, no one actually making that money now feels it enough to act on it.
The people who would be content to rely on minimal poverty support are, largely, doing that already, since we have such programs now and they have a much stronger disincentive to additional income than would exist with UBI due to means testing, which takes benefits away rapidly (sometimes more than 1:1) with additional income.