As Prince Rong's heir, Little Bear could choose whether or not to participate in the sacrificial ceremony. The former was because of his rank and the latter was because of his age.
However, offering sacrifices to the heavens was not that easy. They had to leave through the Zhaoxiang Gate and enter the altar from the left door. Even the Emperor had to walk from the Zhaoxiang Gate to the altar. When they arrived at the altar, they had to carry out a series of sacrificial activities. This torment lasted until around 3 pm. During this period, they could not rest, let alone eat and drink.
Having rehearsed with his big brother, Qi Haoran was aware of how physically taxing it was. Naturally, he didn't wish for his son to go through this torment.