It’s physics: Our feet weren’t evolved to last 40 years of all-day use. The job, as I understand, is a little more involved than a dude scanning labels and house numbers.
Even your nounification of ‘cope’ suggests you will only understand this decades from now.
That’s like saying a chef job isn’t particularly skilled because we can describe it in 9 words.
Psst: suggesting working-class jobs aren’t real jobs is how they keep your wages low.