Final answer:
People don't report certain crimes for various reasons, such as considering it a private matter, fear of retaliation, protecting the abuser, and lack of confidence in the police response.
Step-by-step explanation:
There are several reasons why people don't report certain crimes. One reason is that some victims consider it a private matter and prefer not to involve others. Another reason is fear of retaliation from the perpetrator. Additionally, some individuals may choose not to report the crime in order to protect the abuser. Finally, some people may not believe that the police will take any action to address the situation. These reasons, among others, contribute to the underreporting of certain crimes.