Management requests on my MacBook Pro
The school district needs to remove it from their Mobile Device Management server. It may not be stolen but it wasn’t returned.
When employers or schools buy Macs they do so with an identifying code registered with Apple. The device will phone home to Apple who redirects to the registered MDM server where it will auto enroll and receive MDM configuration in a zero touch manner. Even if you wipe it completely.
You should call the school district IT and give them the serial number. It belongs to the school district until they relinquish it from the MDM server.
It is not normal operating procedure to just let someone keep a Mac. They usually donate to charity instead. It’s a liability issue and a tax write off.