And whether $20/hr is a "living wage" depends entirely on your circumstances. If you're a solo adult you can probably swing it. If you have 3 kids you will probably be on food stamps. Should Amazon pay people with kids more? Or only hire single people with no dependents?
As such, this part of the new deal should be reverted as well "We are relaxing some of the safeguards of the anti-trust laws. The public must be protected against the abuses that led to their enactment, and to this end, we are putting in place of old principles of unchecked competition some new Government controls. They must, above all, be impartial and just. Their purpose is to free business, not to shackle it" since business has not held up their side of the new deal.
A solo adult who doesn't want kids is going to have far lower expenses and "living wage" than a single mother with 6 kids.
As far as the specific concept of a living wage, yes.
> A solo adult who doesn't want kids is going to have far lower expenses and "living wage" than a single mother with 6 kids.
The solo adult can enjoy the extra money. And if they start a family later they'll have extra savings to build on. The baseline should be bringing everyone up to the level that they could afford a family, whether they have one or not. We have more than enough productivity and wealth to make this happen.
For someone with 6 kids, they need help from other sources. That goes beyond living wage territory.