Or we have devices attest user age. On setup, the device has the option to store a root ("guardian"?) email address. Whenever "adult mode" is activated or the root email is changed, a notification must first be sent to the prior root email. That notification may optionally contain a code that must be used to proceed with the relevant action, though the user should be warned of the potential device-crippling consequences.
This setting is stored in a secure enclave and survives factory resets.
I will note that these two systems are not mutually exclusive. There are plenty of ways to "think of the children" that don't trample on everybody's freedom.
This setting is stored in a secure enclave and survives factory resets.
I will note that these two systems are not mutually exclusive. There are plenty of ways to "think of the children" that don't trample on everybody's freedom.