When a parent feels “this phone argument is driving me crazy”, then the parent has the right to take away the phone from the kid, without any reason, without negotiating the lock-up duration. The lock-up duration is … unspecified but I guess 1D is OK.

On this matter, the parent and the child are not at the same level. The parent is the authority.

I like the visual image of the red stop button on a treadmill. In the past, the stop button in my mind was smashing the phone.

The simple fact — many 13-year olds in Singapore has no phone but they are healthy, happy. The phone is optional. Entitlement is completely wrong.