Because the Awan family is very powerful, if Awan has an heir, the power of the general's family may be lost, so either kill the child or let others know that he was born by Awan. Everyone chose the latter in order to save the child. Only people in da Li Ao saw it, and as long as they don't say anything, no one will know. Under Ah Fu's management, people in Greater Li Ao are so United that no one will say anything. They came up with the idea together. You can't get to the bottom of a TV series because the director can't consider every detail.
Yes, that's right, but if the first child dies, the other children can become heirs.