Why might an author use satire?

To make readers with opposing viewpoints consider an issue more deeply. Satire is a technique employed by writers to expose and criticized foolishness and corruption of an individual or a society by using humor, irony, exaggeration or ridicule. They use fictional character to stand for real -people to help expose and condemn there corruption. It could be just to entertain you the reader. It could also just go with the character and the tone of the book. For example, if you made a novelization of the TV show friends you would us a lot a satire.

sam knew that staying up late on a weeknight would effect his exam performance the next day. however, he believed that his friends would be mad at him if he didn't join them. peer pressure and the thought of losing his friends scared sam. he planned to meet them for a couple of hours and then leave early to study for the exam.