IPv6 is a PIA, it should die and govts, universities, etc. should stop hoarding the IPv4 that they have, for example the DoD literally has 74 MILLION IPv4 addresses which they are hoarding.
IPv6 has been around for over 2 decades. It is now older than IPv4 was when it went "mainstream" in the 90's, yet uptake is still quite slow. I remember, about 10 years ago, thinking the 2010's was going to be the decade that IPv6 took off. How wrong I was...