Why do fortune tellers only count others and not their own lives?

Fortune tellers have a word called "leak". When telling others' fortune, you will be scolded for missing too many days, especially for yourself.

When most people know their destiny, some people don't want to change it better, but if they are fortune tellers, they must know some ways to change it. If they want to turn their fate into as much wealth as possible, everyone in the world will definitely learn fortune telling. . . In general, it is better not to know that they can't change their destiny.

There is so-called belief, but if you don't believe it, there is nothing. If the result is not good, I believe it will lead to a negative fate. If you don't believe it, you will question your ability, which is not conducive to your career.

Of course, I mean a professional fortune teller, not a deceptive street stall.