This and the comments highlight how bad many ISPs in North America and Western Europe are at IPv6, still, in 2025, and the lengths to which people will go to treat that as damage and literally route around it.
One of the biggest ISPs in my country has been promising IPv6 since 2016. Another, smaller, competitor, advertised on "World IPv6 Day" in 2011 that it was way ahead of the competition on supplying IPv6; but in fact does not supply it today.
One of the answers I see given a lot over the years is: Yes, I know that I could do this simply with IPv6. But ISPs around here don't route IPv6, or even formally provide statically-assigned IPv4 to non-business customers. So I have had to build this Heath Robinson contraption instead.
One of the biggest ISPs in my country has been promising IPv6 since 2016. Another, smaller, competitor, advertised on "World IPv6 Day" in 2011 that it was way ahead of the competition on supplying IPv6; but in fact does not supply it today.
One of the answers I see given a lot over the years is: Yes, I know that I could do this simply with IPv6. But ISPs around here don't route IPv6, or even formally provide statically-assigned IPv4 to non-business customers. So I have had to build this Heath Robinson contraption instead.