> A parent does not need to be able to read every message sent, every email, every photo, etc etc.
Sure - but a parent needs to be able to know the content of some non-zero fraction of the messages. (Just as in physical reality, a parent can get some gist of a child's conversations when within hearing range.) And even more important than the content, the parent wants be able to see who is sending the messages. A traditional sort of parental control which blocks "adult" (in reality - sometimes educationally useful) sites at the domain level is entirely useless for tackling the problem of creeps, crooks, and crazies sending your kid DMs in supposedly kid-appropriate games and apps.
Sure - but a parent needs to be able to know the content of some non-zero fraction of the messages. (Just as in physical reality, a parent can get some gist of a child's conversations when within hearing range.) And even more important than the content, the parent wants be able to see who is sending the messages. A traditional sort of parental control which blocks "adult" (in reality - sometimes educationally useful) sites at the domain level is entirely useless for tackling the problem of creeps, crooks, and crazies sending your kid DMs in supposedly kid-appropriate games and apps.