How is creating a workforce shortage a feature?
One of the main concepts driving UBI is that people should not be forced to take minimum jobs just to survive. Right now, minimum wage employers know they can recruit employees since alternatives are unpleasant. (Welfare is not great). With UBI in place, employers unwilling to pay an attractive wage will not be able to recruit employees, and will consequently go out of business.
Will I have to pay more for my Big Mac? Probably. I think I read that labour represents about 20% of the cost for a Big Mac, so if UBI increases labour costs by 33% (eg. if McDonalds has to pay $20/hour to attract employees) then the cost of a Big Mac will increase by about 6.6%. On a $6 Big Mac, that represents a price increase of 36 cents. My numbers may be off since I didn't look them up, but I'm almost certainly in the ballpark.
Again, this is not a problem. One of the goals of UBI is to create a labour shortage so that wages can increase.
I know people that "cheat" the system. Pisses me off, that it takes the focus and funds away from who truly need it. But not a battle I am willing to take on.
I bet corporations and small business owners engage (quantatively) in much more cheating of the system than your small players. For example, my neighbor's brother last year got a $500,000 grant for his company that he mostly used on himself. (About $400,000 was upgrades he was planning on making anyway, so he spent an extra $100k or so.) That could have paid for a lot of UBI cheques.
Fact, you can and do lose government funds, when you choose to have a partner, they claw back funding, and expect your partner to support you.
I'm aware of that, I just do not believe that it is the right thing to do.
Why does it matter how much my spouse makes? How does the government know what kind of financial arrangement we have? Maybe he keeps all his money for himself?