The only bit i'd quibble with is becoming ineligible for other assistance programs - one concern pro-UBI economists raise is that if it replaces social programs

The only bit i'd quibble with is becoming ineligible for other assistance programs - one concern pro-UBI economists raise is that if it replaces social programs, the cost of necessities like childcare and housing will just increase proportionally. There's a good argument to be made that certain social goods are actually better when there is no profit motive for the people providing it. Aside from that, I really like your idea. Given the number of people who want to see a UBI, this might be one celebrity endorsement away from getting crowdfunded.