Sounds good, doesn’t work. Never will. Life is cruel, brutal competition. Ideal utopia like that is a fragile, forced state. Violence, hardships, is like energy and complexity. Can’t be eliminated. It can be suppressed only to find it pops out somewhere else.
If a cashier finds out they can make a decent living more will want to be cashier and the cashiers will have less leverage, less salary because they are dime a dozen. This is the reality of this treacherous world.
First worlders offload their less desirable work to poorer 2nd class immigrants, poorer countries. Like it or not, all well intentioned Tesla owning, apartment owning, software engineers are there because someone else in society do the dirty work for them with low pay, indirectly.