In fact, judge Julian Mack, who helped create the juvenile court system in the United States, said that juvenile justice was based on the belief that young people do not always make good decisions because they are not mature, but this means that they can be reformed more easily than adults.[2] However, the relationship between psychological maturity and age is a difficult one, especially when it comes to the law. Immaturity is often used to distinguish between adolescents and adults, and there has been much debate over how to tell if someone is mature, especially regarding social issues like abortion.[3]