Ipv6 is a lot like a bios update - best avoided unless absolutely necessary. Potential mess with no upsides for end users.
IPv4 is a brilliant protocol for having been published 43 years ago. There aren't a whole lot of technologies that old still widely used. I mean, I'm glad my NVMe drive doesn't have to shove bits through an ST412 interface.
I'm not sure if it makes the analogy better or worse, but this is what happened; BIOS was born in ~1981 (I think), had severe shortcomings that were partially mitigated over time but you can only mitigate so much, UEFI is a better replacement, BIOS->UEFI was a somewhat rocky migration, that migration was made worse by extra stuff getting bundled in (secure boot), and this led to a significant chunk of the population deliberately avoiding it at least for a while. The only real difference is that UEFI has long since become standard, while IPv6 is still fighting for adoption.
Sure, one can figure out the split DNS, tunneling/no tunneling, DHCPv6, multiple addresses per interface, additional filtering rules, or just you know "ipv6.disable=1" and worry about in a few more years perhaps.