Why does An Author Write Their Book In the Third Person?

 Why does An Author Write Their Book In the Third Person?

The primary advantage of writing fiction in the third person (using the pronouns he, she, they, etc.) is it allows the writer to act as an omniscient narrator. Information can be given to the reader about every character and situation, whether or not the individual characters know anything about it

In a story with a third-person point of view, the narrator refers to the characters by their names and uses third-person pronouns. The effect for the reader is that of someone watching the protagonist, main characters, or all characters, with varying knowledge.