<p>Jongleur, once you cut off the funding then the behavior changes (in most cases) - he’ll be more motivated because the money tree is cut down. I would cut him off somewhat - like others have said, chores if he lives at home, preferably a summer internship or job, pay only the necessities (room, board and tuition, books). He can get a job to earn the rest. Stash the extra cash in case he turns out to take longer to launch than usual or for graduate school if he decides to go that route. $100 a month as opposed to $500 is plenty for a student who has all other costs paid by parent.</p>