There’s the issue of the job itself being more demanding, but also the managers in “low skilled” jobs being ultra-demanding petty dictators.

As a white collar computer guy, I can waste some time on Reddit. Or go for a walk and grab coffee. Or let people know that I’m heading out for a couple of hours to go to the doctor. There are a LOT of little freedoms tha you take for granted if you haven’t worked a shitty minimum wage job. Getting on trouble for punching in one minute late, not being allowed to sit down, socializing too much when you’re not on a break.

I’m pretty sure that most tech employees would just quit when encountering a manager like that