0.3% of internet users to 34%
https://www.google.com/intl/en/ipv6/statistics.html
I'm still amazed at how many people will say "CG-NAT" is all you need. People don't want globally routable addresses.
Probably the same kind of person that says 10mbps upload speed is all anyone would ever want.
People like you don't want to give users a choice.