IPV6 is used throughout the world, with adoption in the US now over 50%.
As businesses exhausting their RFC1918 address range there are little options outside of utilizing IPV6 to continue growing their environments.
What are the benefits of IPv6? https://www.networkworld.com/article/3254575/what-is-ipv6-and-why-aren-t-we-there-yet.html
In its work, the IETF included enhancements to IPv6 compared with IPv4. The IPv6 protocol can handle packets more efficiently, improve performance and increase security. It enables internet service providers to reduce the size of their routing tables by making them more hierarchical.