Google's numbers for IPv6 connections used are significantly (about 40%) lower than the percentage of homes and other locations that have IPv6 enabled by their ISP to their location.
My personal benchmark: hotels. I have not seen a _single_ hotel that provides IPv6 on their WiFi. And I made a habit of checking this every time I check in.
And I've seen a hotel that was giving out public IPv4 addresses (in Mountain View, CA).
Depends on the country. US>50%; FR>80%:
* https://www.google.com/intl/en/ipv6/statistics.html#tab=per-...
Currently staying at a Hilton hotel in Tucson, Arizona that has IPv6. I only checked because of the submission about ipv6.me yesterday [0].
[0] https://news.ycombinator.com/item?id=43256298
I'm not there at the moment, but I definitely took note of having an ipv6 address displayed on https://ip6.me/home.cgi
I bought this laptop at an electronics recycler. It came with a verizon SIM card, with service that's still working. So this ipv6 address is from Verizon, not the hotel.