Why is Confucius' daughter-in-law and children who died before they grew up not allowed in the Confucius House, which claims to be the best in the world?

This is a "family rule" handed down by our ancestors. The possible reason is that the daughter-in-law is not surnamed Kong, and it is impossible to be like "Kong Lin", which is obviously that men are superior to women. Children who die young can't go to the old grave, not only to Kong's home, but also to many places.

Personal opinion, for reference only.