Re: A shorter term problem
UBI is good to get people working. The basic allowance is enough to keep people warm, fed and clothed. It's not enough to enjoy shiny toys like expensive mobile phones. If they want them they have to get a job, and because they still get UBI everything they make goes into their pocket to improve their lifestyle. Eventually they will be making enough money to pay a little tax, and if they want a better life and are able to progress they will get to the point where their tax bill reaches and exceeds what they are getting from UBI.
Minimum wage jobs and zero hours contracts wouldn't so bad if they were essentially just providers of extra spending money, but they are really crap at the moment for the people who have to do them just to survive.