Is your teen struggling in school? Does he seem apathetic? Have you lectured, grounded and threatened until you have no idea what else to do?
What I believe is most effective with teens and young adults is a one-on-one relationship of support, guidance, trust and setting good intentions then taking action on them. I believe in mentoring.
The main mentors in the United States should be teens -- and, moreover, they should be should teens who live in the same communities and have the same problems as kids most in need of mentors.