There's plenty of justification around the value of IPv6, but it will be lost on most users. But the same scenario has played out before where things that folk

There's plenty of justification around the value of IPv6, but it will be lost on most users. But the same scenario has played out before where things that folks don't understand were enforced, like leaded to unleaded gasoline or removing CFCs. Fastest way to get IPv6 going in the US is to mandate all government usage be IPv6 only by 20XX. Any supplier or vendor must work over IPv6. You'll see the industry fall in line very quickly, no one wants government money to be shut off.