With a basic income for all, people could improve themselves without LOSING their income based benefits. You work on that concept.
If there was a minimum income, what would that accomplish? Would not anyone earning the new "minimum income" not rightly demand an increase equal to the rate of increase previously earning less? Of course, they would, and so forth and so on up the ladder ending in the same situation as today. So what is gained?
I read a story about that a year or so ago; even started a thread on it. I forget the country now, but they wanted to experiment with that concept. Everybody would get (US dollar wise) like 30K every year from the government. It would replace all welfare programs and it wouldn't matter if you worked or not--how many children you had, or where you lived.
Like the US, working people complained about being on the short end of the stick supporting the non-working or low wage people. They were giving to the government while others were taking. Like the US, welfare was a disincentive to getting a job because people would lose or reduce their benefits.
A basic wage would eliminate all that. If you could live on the 30K, fine, God love you. If you wanted more than the basic, you could get a job and bring in even more money into your household. The working would then have no right to complain because they would be getting the same government money as everybody else. It would eliminate the disincentives from going to work, and all figured out, it would save the taxpayers and government money.
I'll see if I can find that post later on if interested.