Well, ED should not be treated quite as cavalierly as that. If a financial situation changes, then the student must speak to financial aid office about it. But if “parents’ minds change” or “if you feel for whatever reason that the FA is not enough,” that’s not taking the ED contract seriously. Obviously, nobody can force you to attend. But it has to be done in good faith. And the NPC is a tool that enables students/parents to embark upon ED in good faith.