It seems there's also a definition error:

> 1798.500. For the purposes of this title:

> (i) “User” means a child that is the primary user of the device.

Child is defined:

> (d) “Child” means a natural person who is under 18 years of age.

But that means this is impossible:

> (b) (4) Whether the user is at least 18 years of age.