how much money is lost when grounding a plane

This article touches on the bad that people in power can create. Lyndon Johnson, throughout his term, saw thousands of young Americans die in Vietnam, though would not give up. This describes the lessons we can learn from him today.
When my husband was getting his pilots license he was told time and time again, "If you fail to plan, you plan to fail". The failure of a kid's money management is probably not as catastrophic as the failure of a flight plan, but the principle still applies.