Why does Old Major come to the conclusion that the animals should not take on the vices that humans have?

Old Major concluded that the animals should not take on the human vices to further the protest against human tyranny.

Explanation:

Animal Farm is a fable written by George Orwell and picturizes the Russian Revolution of 1917.

Old Major, the wise and old pig on the farm, was highly respected by all animals. In chapter 1, Old Major delivers a speech urging all the animals on the farm to revolt against human tyranny. He remarks that to revolt against humans, the animals also need to abolish human vices such as living in the house, sleeping on the bed, wearing clothes, drinking alcohol, smoking tobacco, etc.