[dragonwriter]

> People over a certain age get a UBI (in many countries).

> Maybe extrapolate from what they do...

People over the age for drawing public pensions (whether or not those are UBI-like; most I'm familiar with are not) are probably not representative of the broader population in their decisions with regard to engagement in the labor market, entrepreneurship, etc., and how those decisions are impacted by changes in available resources.