Is making your child work during college counter-productive?

I did work study in college and enjoyed it.
DH worked one year during college and all the summers in between.
S1 didn’t work his freshman year but did work (off campus) his last three years.
S2 didn’t work during college. College wasn’t easy for him. Didn’t want him to have extra stress of a job. He did work the last three years in high school.