"儿孙自有儿孙福" is a Chinese proverb that means "the children will have their own troubles， but the grandchildren will have their own happiness". It suggests that the younger generation will have their own challenges and difficulties， but the older generation will have their own joys and blessings.。
In terms of the生肖， the 生肖是指中国传统的十二生肖，包括鼠、牛、虎、兔、龙、蛇、马、羊、猴、鸡、狗和猪。由于每个人的生肖顺序不同，所以无法确定他们的儿孙的生肖。