Why do fortune tellers regard 72 years old as a hurdle?

Fortune-telling says that at a certain age, there is a hurdle in life. Can you believe it?

"Nine times out of ten, life is unsatisfactory", and a person's life is made up of large and small hurdles. What fortune-tellers say can either simulate ambiguity, or eternal truth (you belong to this category), or the most likely event. Experienced psychologists can become so-called fortune tellers. What I want to say is, it doesn't matter if you believe it or not. As long as you remember the truth, goodness and beauty, there is no hurdle.