If we leave other relevant issues aside, the sexual transaction itself is harmless. Therefore, it is not justifiable to prohibit the sexual transaction either in law or in morality. As to the harm the sex transaction can bring to children and juveniles, our criminal law has already had a thorough preventive system. It thus leaves the Child and Juvenile Sexual Transaction Prevention Act the only role to deter people's desire to engage in this kind of transaction. Since the sex transaction is lawful, to deter the desire to engage in the transaction is inconsistent with the goal of the criminal law. This act has consequently lost its legitimacy.