There is a minimum wage that's not too shabby (not good, make no mistake, but will prevent you from going hungry) and if a person is working but under the existential minimum, the government will basically put them on unemployment benefits and top up their salary to bring them up to said minimum. The system has faults, yes, and most people will do everything on their power to not be dependent on the government for that, but it will keep (cheap) food in the fridge.