Why do many people think fortune telling is a lie?

Many people think that fortune telling is false, because fortune tellers always cheat money. Some fake fortune tellers just learn some Zhouyi by themselves and then go out to set up a stall to tell their fortune. Tell people a mess and let them pay the bill.

It's not that I don't believe in fortune telling, maybe I'm afraid they'll say bad things, and then I'll be upset. Even if I spend money to eliminate disasters, my heart is still not practical. If you don't listen to them, the ignorant are fearless.

Sometimes, these things are hard to explain by science, including some witches. There is a witch in my grandmother's village. Because my grandmother is a teacher, she doesn't believe in these ghosts and gods. But once my brother had a fever and lost fluids for three days, but he just couldn't get well. Later, the old grannies in the village said that they would show the witch, which may be scared. My grandmother especially didn't believe it, but the grandson of such a baby couldn't help it. He went to see it when he was ill. As a result, the fever dropped immediately after reading it, which was particularly amazing. Later, my grandmother also began to believe.

Including our fortune telling, why don't most people believe it? Because they think they can control their own destiny, why should they listen to a fortune teller? Another idea is, if he can calculate correctly, why not calculate for himself? He is also a fortune teller. However, we must understand that doctors do not cure themselves. Who would operate on themselves with a scalpel? If you tell a fortune, you must want to be a good person, so it must be nothing. They can't calculate with a fair and just attitude, and naturally they can't calculate their own destiny.

Actually, how can I say this? I believe it, but I don't.