With the fast economic development, people have their living standard improved. A lot of families are no longer worried about the money problem. Parents want to give their kids better life in the aspect of material. When their kids leave home for college, parents always give them lots of money and tell them again and again that “buy what you want” ”eat more nutritious food” ”don’t save money for home” ”if no money, tell me, I will give you” and so on.