And that 50% adoption is only as high as it is because China went from almost zero in 2017 to over 80% in 2025 after they included IPv6 adoption in one of their 5-year plans
The 50% adoption number is based on Google data which doesn't contain users from China, since Google is blocked there. If you added Chinese users the number would probably be closer to 55%.
Also funny it was made in 1990 and it only recently reached 50% adoption.