Why do some people don't trust those fortune tellers, but they still have to count?

In fact, everyone knows that fortune telling is a part of Zhouyi. To deny fortune telling is to deny Zhouyi, and then Confucius became a liar. Because this book was written by Confucius and arranged by him. There is also fortune telling, which has existed since ancient times. Although there are few accurate people, there is a group after all. Fortune-telling has always existed. If it was a lie, he would have been escaped by society. It won't spread to order. You can go to bookstores and stalls to sell books. Do you think fortune-telling books are the most popular and the best to sell? Why?