Actually, what we need is a single chip system given to you when you are born and charge people for it. If they can't pay, put 'em to work.
The chip will hold all our info.
Then when we want to do something on the internet or IRL, a computer will read our chip and we will use the system.
It will have... no abuse or secondary consequences.
But it will perfectly protect minors from getting on dating sites.
I wonder what other historical characters/political systems would love such a system?