They already did a basic income experiment back when Prime Minister Trudeau was called Pierre.
In short... Most everyone kept working or didn't start working as early but stayed in school longer.
Also, hospitalizations went down, particularly for mental health problems.
But if you want a real Twilight Zone mindfuck - look up Nixon's basic income experiment.
Run by Donald Rumsfeld and Dick Cheney.
Granted... they saw it as a way to eliminate social programs instead of to expand them. But even they found that there was no change to "work ethic" - everyone still kept working.
Apparently, being "at or just above the poverty line" is simply not enough for most people.