Comment by eqvinox

In IA_NA mode, you're at the mercy of the DHCPv6 server for any kind of address privacy. And good luck getting a second address if you want to run a CLAT for 464. You don't want this in a home network.

As for servers, you mostly won't want it either, considering (a) you might rather configure things statically, and (b) it's easier to just deal out whole /64s per server, especially since that gives space for VMs.

So where's the niche for DHCPv6? Maybe assigning addresses for telco or OOB equipment… idk.

And just to be clear: DHCPv6 information-only ("stateless") and DHCPv6 prefix delegation modes are perfectly fine. It's the individual address assignment (IA_NA) mode that should just never have been invented.