Why shouldn’t they be done by people with potential?

It seems to me the opposite. The world runs on a lot of shit jobs. Young people on some path to important leadership positions in society should with have real experience in these positions.

E.g: I learned a lot about efficiency and working with diverse and problematic people when I worked fast food as a teenager. I learned a lot about automation and prison when I worked in a factory in college. Both shaped a lot of my mental model for the world, and I think both contributed a lot to long term leadership skills.

The only shit high school job I don’t think I learned anything from was fruit picking. Other than maybe just how miserable it is.