https://support.apple.com/en-us/HT201304 https://support.apple.com/en-us/HT201304 Here are some features and settings that you can allow changes for: Passcode

https://support.apple.com/en-us/HT201304 https://support.apple.com/en-us/HT201304 Here are some features and settings that you can allow changes for: Passcode Changes: Prevent changes to your passcode Account Changes: Prevent account changes in Accounts & Passwords