Not sure about what could be done about supply/demand. They are low skill jobs. Most people could learn to do them pretty quickly. That doesn't mean they don't deserve to be paid properly-- the current economy is creating those jobs, we still need service people. They are working hard. But as far as supply/demand goes, I think there would always be a surplus of people who have the ability to do those jobs.
That said, the system creates these imbalances so I would not look to simply treat the symptom.
Progress depends on a deficit of cheap labour to encourage automation. Globalisation has seen companies move manual low-skill jobs to other countries. Meanwhile land prices are up and so are rents. People must take what they can get whilst the usurers run rampant.
Those further up the value chain have more of a give-and-take relationship with their employer, the supply/demand curve is more in the favour of the employee. The employee has better savings and is not facing missing next week's rent if they are fired. A very different dynamic.