The guy is asking for parental control functionary for his kid. Let’s not make this into a nerd culture war thing about, what? Free software? Open hardware? It would be about just as absurd for the parent to have the ability to, say, implement this themselves, but still need to do so instead of it being turnkey functionality provided by the vendor. A solution that’s just for nerd parents does society approximately zero good. There are myriad places for you to make the point you’re trying to make. This discussion is not one of them.