What is the meaning of the place of origin in the household registration book? Why are my grandfather's father and my brother's different?

This native place refers to a person's ancestral home or native place. Ancestral place is the birthplace of an ancestor in a certain period recognized by a family group. Some people who have left their ancestors' birthplace or hometown still trace their descendants back to their ancestors' birthplace or hometown (that is, ancestral home) as their birthplace. Country of origin refers to a person's original place of origin before moving to a certain place. The domicile is not necessarily the person's ancestral home or native place, especially in economically developed areas, some new places that started construction after the founding of New China and places that have developed rapidly since modern times. A large number of people's native place is not their domicile place. Generally, these people moved from other places to new places after China's reform and opening up or in the era of planned economy, according to the distribution of countries at that time or in modern times. According to the tradition of China for thousands of years, native place is an expression of ancestral place, which is the difference between modern household registration and native place.