There's a big difference between your kid accessing inappropriate things at a friends house for a few hours a month and having that stuff at his or her fingertips 24/7.

If parents were really concerned about this stuff they'd take the time to set up parental controls, but they don't. Which makes me pretty sure the push for all this isn't coming from parents.

Same applies to alcohol at a friend's house, cigarette's behind the shop, and any other sort of restrictions when away from parents. Ultimately kid's will either take to heart their parent's guidnace or they won't.

You can’t patch every hole. Kids will always find a way.

More technological solutions to social problems.

> Super awesome as long as your kids never go anywhere they could access a non-locked-down device.

Please describe how requiring a government ID in order to use a computer prevents an over-seventeen from presenting their ID to unlock their computer and then handing that computer over to an under-eighteen? An over-seventeen handing over control of their unlocked computer to a visiting under-eighteen seems to me to be an under-eighteen "go[ing somewhere] they could access a non-locked-down device".

The only way I can see to even begin to combat that is to constantly surveil the operator of the computer to attempt to detect when its operator changes. Do you have a superior method?