Is there any evidence that whole-workforce productivity applies equally to minimum wage jobs? If not, the claim seems unsustainable. Completely anecdotally, improvements in labor productivity due to automation (etc) are less likely to be impactful in jobs like waiting tables, delivering newspapers or flipping hamburgers. That anecdotal evidence is backed by research that shows that service sector productivity tends t…
It absolutely does not. Productivity gains over the past 50 years have been disproportionately concentrated in higher skilled positions (who earn salaries, not wages). If you feel like reading a 66 page extremely dry analysis of the relationship between compensation and productivity then here you go. https://www.nber.org/papers/w24165.pdf
When I was a teenager, food service proved to be a much more complicated job than I anticipated it to be. My first tech jobs paid better (even though an internship would have paid more), and felt simpler. If only because I'd spread out the effort of learning the skills over 8 years instead of 3 months.