It is unfortunate that businesses are behind in rolling out IPv6. I get the impression that IPv6-only is more doable and has more advantages for business. It is

It is unfortunate that businesses are behind in rolling out IPv6. I get the impression that IPv6-only is more doable and has more advantages for business. It is feasible to run NAT64 in business cause don't have to support as much old software like games that people want to play. It helps with internal addressing issues which get complicated in big companies with acquisitions. Finally, it adds a security barrier between IPv4 for external and IPv6 for internal. But upgrading a working network is lots of trouble. Most existing businesses have plenty of public IPv4 addresses and don't have to conserve.