Why does every village have a fool?

Because the rural medical conditions are not good.

Therefore, there are fools because the medical conditions in rural areas were poor in the past, and the children were normal when they were born. After they got sick, they were not treated in time, which damaged the development of brain nerves and lowered their IQ.

Fool, there are many meanings. Generally speaking, people who do things and think about problems are arrogant and contrary to common sense, which is unacceptable to everyone. In other words, people with mental illness are called fools. On the contrary, it is a normal person, a fool, or a modest noun, which mostly refers to honesty and integrity. Misnamed by others.