The infancy defense holds that juveniles are too young to understand and evaluate their actions, and tries to establish that mens rea, "the intent to commit a crime," is not present in the juvenile. In practice, however, if the crime is serious, the adult criminal court might try the case, if the prosecution can prove that the juvenile is mature enough. In this context, do you feel the minimum age requirement for trying a person in the juvenile justice system should remain in place? Why? Provide a rationale and exs to support your view.