When I was 16 I worked the wheat harvest in the Texas panhandle. I ran a combine 18 hrs/day. Had to grease it every morning before getting started. I don’t remember for sure but I think I was paid $1.50/ hr. This was in 1959.
I don't know who is running the combines now, but in those days, college students considered working the wheat harvest to be a good summer job. Given the chance, I believe that would still be true. Imagine--Americans doing the job illegals shouldn't do.