Youth crime is the most serious problem should be solved in our society. Teenage crimes are going to more aggressive and violent. One of the reasen is that, childhood and adolescence are unique from other stages in that people in those stages are emotionally vulnerable and easily swayed by the circumstances around them, so that they are more likely to get involved in criminal activities. In addition, since the double income family is being the standard, the time spent their peers is increasing. This makes children cannot decide rightly due to the fact that nobody explains them how to behave properly. That is to say, adult's supervision and education are needed for children to behave correctly.