no one tell them...
The easiest way to address this would to be give each Aussie an IPV6 Allocation range, and any devices you own must be registered in your range.
I am SO happy Boomers are dumb as a box of rocks when it comes to this stuff, because IPV6 could be used to ID every man / woman / child on the planet, for the next 1000 years and still have plenty of space left.