This all depends on fantasy tech and/or totalitarian control of tech.
Who verifies that the person verifying the child's age is actually authorised to do that? Who verifies that verification? And so on up. This needs a chain of trust that can only end up at government. And that chain of trust will then be open to being abused by shitty politicians.
What mechanism in (e.g) Linux is responsible for implementing this age verification so that it cannot be tampered with (or trivially overruled by a sudo call)? Which organisation is legally liable if that mechanism doesn't do its job? How can we stop someone from overwriting that mechanism with their own, in an open OS that is deliberately designed to allow anyone with root to change anything on it?
What you propose here is the death of open computing. And I personally believe that we would be much better off as a species if we kept open computing and just taught our kids how to handle social media better.
> What mechanism in (e.g) Linux is responsible for implementing this age verification so that it cannot be tampered with (or trivially overruled by a sudo call)? Which organisation is legally liable if that mechanism doesn't do its job? How can we stop someone from overwriting that mechanism with their own, in an open OS that is deliberately designed to allow anyone with root to change anything on it?
This one is easy. You just don't require all devices to do that. The parent isn't required to give the kid a general purpose computer. You don't need to prevent every device from running DOOM, only one device, and then parents who want to impose such restrictions get the kid one of those.