Depends on how it is spent. Buy candy/beer - as many kids will (depending on when they are allowed to access it) and there is no good. Buy some education and it is good. Remember money is fungable - even if this money can only be used for something good, it can still free up money for something bad that in turn destroyes the good (you buy tuition for a semester, but then use your free cash to party and get bad grades...) I don't know how to solve this problem, but it is one everyone should be aware of.