There are several reasons why a writer might choose to use satire in a text. First of all, satire has a particular tone, usually a humorous one. This means that an author could use satire in order to convey a funny tone. Moreover, satire is often used in order to motivate social and political change. This can be another reason for the use of satire. Finally, a lot of writers might use satire when they feel they cannot directly and explicitly criticize a particular person or institution.