Earlier quoted context omitted.
Does it include children? How many is considered dignified? Some people have to have 3 just to keep the population steady. If so, is it appropriate for a childless 18-year-old on minimum wage to earn that much (he could probably lease a Ferrari or retire at 38) Is it appropriate for a company to pay a childless person less than a person with children? Why? What if he’s sterile? Seems very tricky to me.
In my country, Sweden, we have a very generous child welfare and parental leave. I have no children though. By your logic I should be envious and bitter? But I'm proud. It's called solidarity and having a healthy society benefits a childless me as well. It's not tricky, and has been going on for the last fifty years or so just fine.
We were talking about wages, not state benefits.
State benefits are a much better way to address income inequality or poverty than minimum wages are.