Stop doing IP addresses and use DNS
IPv6 will only start taking off when people (thats *you and me*) stop working with dumb IP addresses and start using DNS correctly. The amound of times I have to shout at people who hard-code IP's into apps, files etc gives me an ulcer. THe *point* of DNS is that we dont need to remember stupidly long IP's.
And don't get me started on the abombination that is CGNAT. WTF - its a too-small plaster for a festering boil, and I hope it breaks and takes all its apps with it.