This seems like an extremely hostile move for those trying to access government services from outside the country. What are people supposed to do if they live in a place where V6 connectivity isn't even available? Having to change your carrier to a more expensive one, just so that you can file your taxes or whatever every year, also seems like a terrible outcome.

@miki - IMO there will be no excuse to not be dualstack in 2032, don't you agree?

Sorry, I missed the 2032 part, I thought it was june 6 this year. I still expect there will be a few holdouts by then, particularly in places with no budgets for modernizing IT infrastructure. I don't believe we'll reach 100% worldwide coverage in 8 years.