Earlier quoted context omitted.
Most restaurants derive most of their cost from labor. With basic income in and minimum wage out, you can pay people much less than you had to before. Yes, you may pay more in taxes, but that's from profit after everything else has been taken care of. So if you end up with less total profit than before, it sucks, but your control over the situation is far more variable than if you had to simply suck it up and plan to…
It's the opposite. The utility of money decreases as the amount of money owned/earned goes up. $9/hr to a person without basic income is worth more than $9/hr to a person with basic income. Now people need more money to gain the same utility as they could have previously gained without basic income. Why would people wash dishes if they didn't need to pay the bills?
Can they afford nice clothing to attract people they like?
Can they save up for college? For their kids?
Can they play the latest games? See the latest movies?
Do they enjoy cigarettes, alcohol, or other recreational drugs?
Do they like to eat out?
Do they want a higher standard of living when they "retire?"