Sounds like a great idea. Take every 8th grader in the public school system and have them mow the parks, pick up trash in the afternoons.
In the 9th Grade have them work in the food kitchens in the afternoon.
In the 10th Grade give them a choice of working in the food kitchen, the parks or learning about the cost of living, finance charges on credit cards and other useful things. In the 11th and 12th grade it is college prep or trade school.