There is a compatibility later for IPv6 to access IPv4 called NAT64. It requires that IPv6 have a large address space to fit the IPv4 address inside IPv6 addres

There is a compatibility later for IPv6 to access IPv4 called NAT64. It requires that IPv6 have a large address space to fit the IPv4 address inside IPv6 address. There is also MAP-T which can do stateless IPv4 NAT over IPv6 network by shoving the whole NAT state, ports and address, in the IPv6 address. The length of IPv6 addresses is an advantage because people don't try typing them because they are so long. My home network have IPv6 and I have never had to enter IPv6 address. I don't know what my prefix is, I don't know any host addresses, I use mDNS to get to other hosts.