Next we'll have tags that parents can put on their children so that they know where they are at all times. Now, I am seventeen and I live over 1300 miles from either of my parents and just the thought of anyone knowing where I am at any time, let alone my parents, is scary. It's an invasion of privacy, even if I am a minor. It's crazy.
Now of course this 'system' will be faulty. People, maybe even one of you, will hack it and disappear. I know I would. I value my education more than anything. But if this starts up in the states, I'm out of there. Of course, this would take many years for the U.S. to accept so I'd probably be a college grad by that time anyway.
Screwing a system near you.