According to relevant data, it is incorrect to leave parents in the Han Dynasty. The system of "supporting relatives" was founded by Tuoba Hong, Emperor Xiaowen of the Northern Wei Dynasty in 488 AD, not by the Han Dynasty. Parenting is based on the ethical concept of Confucian filial piety, and future generations must fulfill their obligations of supporting the elderly and dying. Emperor xiaowen wrote a special letter to show his heart. For those who have committed the death penalty, their parents and grandparents have no heirs and no one to support them. Before being executed, they are required to spend the rest of their lives at home.