IPv6

Touché. Maybe the OP isn't aware that IPv6 can be made as simple as IPv4 on a local network? Maybe he has IPv4 only devices?

I believe we should simply abolish IPv4 completely. We have zero need for IPv4 and dual-stack networks are way more prone to errors and complexity.

People usually say that IPv6 is hard and IPv6 addresses aren’t “memorable” but that’s mostly BS because with the :: aka “reduced format” they can be even simpler than IPv4 - after all fc00::1 is a valid local IPv6 address. :)

Others might say it is dangerous without understanding how NAT isn’t necessary and how a firewall should work. Another common argument against deprecating IPv4 is that we should keep compatibility with older devices, to which I say… IPv6 support was introduced in Windows XP SP2 (2004).

IPv6 is great, largely simply networks, make things more efficient and allows for more complex scenarios that are hard to deal with in IPv4. Multihoming, advanced load balancing, network level split DNS, direct peer-to-peer communication, totally abolishing DHCP in a usable way etc.