Almost all ipv6 traffic is mobile, which is running under far more totalitarian execution environments (mobile OSs) and centrally controlled addressing. While

Almost all ipv6 traffic is mobile, which is running under far more totalitarian execution environments (mobile OSs) and centrally controlled addressing. While that is a ipv6 success, that is greenfield. And the telecoms are basically running a huge ipv6 nat when they need ipv4 routing. Which is heretical to ipv6. The issue of migration of existing ipv4 is still sucky. Meanwhile normal desktop OS and infrastructure and consumer routers are (20 years after this article) a disaster.