The fact that we have yet to fully deprecate IPv4 should be considered a great failure in the tech industry's competence.
Why? It was designed and implemented by competent people and continues to work today.
It's actually a blessing for some, what would drive a company holding such a large capital of IPs to make it lose value by supporting IPv6?
Not enough supply/demand. AWS charge like $0.005/hr per IPv4 address
Then again, given some even failed to adopt the metric system ...
Also, that same tech industry has shown remarcable competence in working around IPv4's limitations.
It's the hobbyists who LARP as network engineers, and that end users and hiring managers can't tell the difference, who are holding everyone back.
Anyone who doesn't by default set up IPv6-only networks by default with NAT64 and DNS64, or who present any notion that IPv4 is somehow "okay", shouldn't have a job anywhere, not even an entry-level desktop support job.
IPv4 is perfectly and objectively fine on internal networks. IPv6 is overkill and way too complicated for most.
IPv6 can be selectively applied to say, NAT addresses, but other than that, IPv4 is just fine and your statement is incorrect.
Well the migration from IPv4 to IPv6 is probably less important and less impactful than climate change, and let's check the score on that...
:grimace: