That's not entirely true though. IPv6 has been prioritised on various devices and Google taught us over a decade ago that response time makes the web experience feel better to the user.
You'd better be on dual stack if you don't want your users to think the competitors feels faster/smoother. Otherwise you'll be the Yahoo of your market.
You'd better be on dual stack if you don't want your users to think the competitors feels faster/smoother. Otherwise you'll be the Yahoo of your market.