Earlier quoted context omitted.
From the optimist's view, think how many people whose lives are being spent working at Walmart or McDonald's who could instead be at home developing skills they are actually interested in (which school does a poor job of teaching), such as programming or sculpture, etc. Imagine the entrepreneurs who might feel freed to give business a chance, rather than feeling that they can't quit their day jobs? It would be a gran…
From the pessimistic point of view, why would anyone choose to work a crappy job at Walmart or McDonalds when the government would give them the same money without having to do anything. Walmart and McDonalds (and everyone else) would therefore either go out of business or raise their wages. Raising their wages would increase the price of their goods. Increasing prices of goods would increase the cost of living which…
Also not everything is in the function of pay. Once people have enough for living, the deciding factor like having an enjoyable and meaningful job also do count. It's then up to Walmart to transform themselves to become that place and attract employees.