Unable to log out of Apple account due to restriction

If an app or feature on your device is not working, not appearing, or is restricted (grayed out), a frequent reason is it may have been disabled using Screen Time, or by an IT administrator if you are using a device owned by an employer or educational institution.

- Read this support article If your Apple ID or other options are greyed out in Settings —> If your Apple Account is grayed out in Settings - Apple Support

Tap your Settings app > Screen Time > Content & Privacy Restrictions > scroll to Allow Changes and turn on.

- If the device is managed (check: Settings > General > VPN (or Profiles) & Device Management), contact the IT department of the organization that is doing the managing.