Why would someone not be allowed within 200 feet of a school?

Someone might be prohibited from being within 200 feet of a school due to a court order or law related to a prior conviction, particularly for sex offenses against a minor. These "school zone" restrictions are designed to protect children and prevent further offenses. Other reasons, though less common, might include violating a restraining order that includes a school, or being involved in a specific incident that resulted in such a restriction.