i see the same problem with this as i see with a $15 minimum wage (lets piss off a lot of liberals at once, eh?)
if you will be fully taken care of for sitting on your ass and getting fat (which costs more to take care of with diabetes, etc), why bother working at all? What is the motivation?
The way this relates to $15 min wage (which is way way more realistic, and already happening in a few places) is what is the point of getting a harder job? There are lots of jobs that pay in the range of $30,000 / year (entry level teacher, office assistant, manufacturing assembly, some trades jobs, etc) that require training, more stress, harder work. All of a sudden working fast food (which is easy and zero stress and no brains, and the day goes fast-ish you don't hate yourself really like some office work, i did it for 3 years) will make the same amount, so why would people bother with the harder / more stressful jobs?
but, people like stuff that benefits them, and more people would benefit it than fund it, so it has a decent shot of getting through the Communist States of America (GO Bernie!). Hopefully it waits 10 years and only targets wages not savings or investments (imagine a tax that took 10% of your checking account and investment account per year....) , that would make retiring a BREEEEEEEEEEEEEEEEEEEEEEEEEEEZE.