I will happily enable and use it once doing so doesn’t break any of my connectivity.
I’m not managing an enterprise network, it’s just my home, but my ISP doesn’t support IPv6 so that’s one extra layer of complexity right off the hop. On top of that internal services switch which previously required no manual configuration just seem to randomly not work.
IPv6 is not going to see widespread adoption unless it can be implemented completely transparently for the end user, full stop.
North America uses a different scale for octane than most of the rest of the world. 91 AKI is typically about the same as 98 RON.