Pose questions that will help him think about his options and interests: “If you were to continue with your education, what would you like to study?” If he’s more inclined to begin working: “Would you prefer to work inside or outside, and why? Do you prefer working with people, or on your own?”
Brainstorm career choices with him, then help him prioritize his list. Offer to help him look for a job, or encourage him to sign up with a career counselor at a local university or community center. Just remember not to make any decisions for him.