Date and time - set automatically is dimmed

Read again -< Related Article: If you can't change the time or time zone on your Apple device

• The option to turn Set Automatically on or off might not be available with all carriers or in all countries and regions. If the device has a Screen Time passcode or a corporate profile with device restrictions installed, then the option to turn Set Automatically on or off will be dimmed, or grayed out.

How to brighten Time and date on home screen iPhone 8