alt Hacker NewsNo, as I pointed out in another reply to you, home internet is commonly dual-stack (at least in the US and many other countries), and machines with dual-stack connectivity can and do use IPv6 to connect to sites that support it. You can verify this yourself using Wireshark or similar tools.
Yes, I have done many times. You know what else Wireshark showed me? That even though my ISP and all my equipment have IPv6 addresses, they never use them by default.