The thing is, it's not v6 or v4, it's v6, v4 with a price premium, or v4 with CGNAT. CGNAT sucks. Stuff blocks you because you get lumped in with other users.

The thing is, it's not v6 or v4, it's v6, v4 with a price premium, or v4 with CGNAT. CGNAT sucks. Stuff blocks you because you get lumped in with other users. You can't take inbound connections. Average users don't know that, but they get annoyed with side effects. Not being able to play multiplayer stuff or it being slow/high latency because of no inbound connection. Having to do extra CAPTCHAs, being straight out blocked, etc... Price and annoyance are absolutely things people want to avoid. I guarantee you at some point, some ISP is going to realise they can market themselves as the gamer ISP and sell IPv6 as the option for pro gamers to ensure the lowest latency in their games. CGNAT will be the congested roads, IPv6 the open motorway. (To be clear, it obviously isn't that simple, but I'd put money on that's how they'll sell it.)