In order to be filial, the old man complained about his children everywhere and announced that their children scolded their leaders at home. Will their children really be filial in the future?

No, on the contrary. It will only push the child farther and farther, because the old man is too selfish and completely ignores the child's life and death for himself. Children need work and relationships to live. The old man speaks ill of the children everywhere, and goes to the children's unit to toss and turn, blocking the children's roads. Children just want to stay as far away from the elderly as possible.