[walton_simons]

Yeah, this is exactly the sort of thing I'm talking about. Lots of additional overhead and work, and — again, speaking as a home user — no apparent benefits for dealing with it all.

I get all the concerns about CGNAT and so on, but that's something for the ISP to figure out. If I get a message one day saying that my connection speed is about to drop 30% because of my insistence on IPv4, I will of course react!

The question for me is not, "why would I block it?" but instead, "why would I enable it?". There needs to be a reason, and right now I'm not seeing it.

[Dagger2]

And ISPs are figuring it out. All you need to do is leave v6 on in the routers they ship out.

But if you're running your own router then you're taking over part of the responsibility, so you need to handle your part of it.