There is no natural quality of life guarantee. Those complaining about working at McDonalds can strive to improve their life. They can also thank the lord they were not born in some impoverished 3rd world country.
The reward for a job should not be based on the age of the person doing the job, it should be based on the quality of the work. Otherwise we would be paying people 50 bucks an hour to put a license plate frame on cars on an assembly line…something a chimp can do…