1) Can you enforce your parents' "promise"? Why or why not?

Your parents promise you $40,000 if you graduate from an Oregon college. You have already decided to go to college even before the promise. But the promise demonstrates to you just how generous (and rich) your parents are. You enroll in University of Oregon, and attend full-time for four years, and graduate. When you ask your parents for $40,000, they say, "We don't remember promising you $40,000. But if there was a promise, it's not enforceable, because we didn't bargain for it. And even if there was a promise that would otherwise be enforceable, we revoke it now."