Of course, there are social reasons for not eating beef, and cattle are an important means of production. But as a doctor, Sun Simiao himself has the responsibility to tell everyone that these meats are non-toxic and have many benefits, but it is best not to eat meat in special circumstances such as death due to illness. And Zhuangzi, because he is a great philosopher and writer, even if he talks about eating beef, Taoist priests will think it is right.
What's more, when Zhuangzi was still alive, Taoism had not formed a group and there were no unified rules. In addition, there are many cultivation contents in Zhuangzi, which have been well inherited by Taoist priests. However, Taoist priests will not change Zhuangzi casually, let alone turn killing cattle into killing chickens, pigs and dogs, and Zhuangzi's writing about killing cattle will not affect his position in Taoist hearts.
This is Taoism. Some people don't eat beef because they think Sun Simiao is honest. Moreover, ancient cattle were important production tools. In order not to destroy production, the general government regulations are to protect these animals. But we will not force others to obey our own preferences, and we will not think that killing cows, pigs, dogs and swallows is a bad person. Even for everyone's benefit, the doctor told us that meat is good.