Around these parts even ~$10 an hour is a livable wage without any government assistance and living on your own (granted likely with a roomate), having internet, cellphone, vehicle and time and money for hobbies and other activities.
It’s frugal living but it’s hardly barebones living either.
If it’s just the matter of survival and basic living, ~$8 an hour will suffice as well, and at that point in time you are likely to be in a bracket for some sort of government assistance as well, where the tax payer starts to indirectly pay the employeers salary and supplementing the wage.