I made a deliberate choice to see if ipv6 was ready. I don't need ipv6, I do need ipv4. ipv6 doesn't work, ipv4 does.

The alternative (dual stack) is more work for no reason.

If ipv6 ever works then great.

I built a test ipv6 network for work but a lot of equipment simply didn't support it, and of that which did our suppliers said "well it might work but nobody actually uses it so we don't know"

It's a solution to a problem which was solved in a more backwards compatible way decades ago. It would be lovely if it worked, but it still doesn't.