NAT just werks and that makes IPv6 trannies seethe.
Discussion
I run IPv6 NAT on my container system:
https://battlepenguin.com/tech/docker-with-ipv6-and-network-isolation/
...just for consistency. I do actually like IPv6, but yea it is a fucking cunt to work with. Keep in mind, it did come from a time when most programmers thought the future of networking would be entirely peer-to-peer .. before things like lawyers and advertising and napster ...