And it will give him an appreciation for hard, physical work and the people who have to do that kind of work.
And it will be incentive for him to keep focused on his school work lest he have to work that kind of job the rest of his life.
Worked for me on both counts. :)
I always said it was important for my kids to work minimum wage jobs during high school so they would understand why they wanted to go to college. In order to never have to do that again. The experience and to find out what it is like to punch a time clock is priceless.