It's good to support it to resolve the chicken egg problem. If no service supports it, there is no sense in deploying it to the customers and the other way around.
Also you made the life better of people who have DS lite. They only get a public IPv6 and all their IPv4 traffic goes through a CGNAT.
Also you made the life better of people who have DS lite. They only get a public IPv6 and all their IPv4 traffic goes through a CGNAT.