Unregister your account, register a new iCloud and add it to your iCloud family. You can have 6 people in your family account. I have ADP on my devices but no

Unregister your account, register a new iCloud and add it to your iCloud family. You can have 6 people in your family account. I have ADP on my devices but no one else in my family has it on and we’re all in the same iCloud family.