I like the idea of replacing the revenues for government and social welfare needs. But what exactly is a robot, and how many robots replace how many people for what amount of tasks? How does that evolve? Is an ordering kiosk, one human replacement or two?
When you go to the totally automated McDonalds or Rally's, just how many people does that count for, and for how long?
I like the idea of people working rather than "robots" but make-work jobs and strange occupations are tough to describe. I prefer people to deal with as waiters and most other jobs. The "user experience" of most human interface replacements leave a lot to be desired.... although I've had my share of weird waiters/waitresses/in-betweens.
This is wickedly tough to classify.
Another thought: Who gets most of the tax money collected? The unemployed, a "general fund" - or will it go to sticky fingers (politicians for a new yacht, lawyers). In principle it sounds like a good idea; in practice experience has taught me to be wary.