A big birthday can consume 8- 10 years of life.
Moreover, the birth of human beings is a process from God to man and then to God.
1. From birth to 16 years old, this child is a "god" rather than a person. We can all celebrate our children's birthdays, even if it is a big event.
2. 17 to 59 years old, people have changed from "gods" to people, and they can celebrate their birthdays, but they should celebrate their birthdays according to local customs. For example, every tenth birthday is usually one year earlier. For example, the 30th birthday is usually completed at the age of 29. And in many places, "three but four", that is, the thirtieth birthday can be celebrated, and the fortieth birthday can't be celebrated.