Why does the device have the option to Remove Management if enrolled using Automated Device Enrollment?

Devices added to Apple School Manager or Apple Business Manager using Apple Configurator 2 and then enrolled in Jamf Pro using Automated Device Enrollment are under a 30-day provisional period where users can release the device from:

The provisional period starts once the device is enrolled in an MDM. If you have devices that were prepared using Apple Configurator 2, if possible enroll them before they need to be given to users to wait out the 30 day provisional period. After the 30 days passes the option to Remove Management will no longer be present.
​

Add devices from Apple Configurator to Apple Business Manager, Add devices from Apple Configurator to Apple School Manager
​
​
​
​