> I think the decades of dominance of UDP/TCP over IPv4 over Ethernet (which comes with the pre-existing knowledge in everyone, the years of experience working

> I think the decades of dominance of UDP/TCP over IPv4 over Ethernet (which comes with the pre-existing knowledge in everyone, the years of experience working with it for any IT person, the additional workarounds like NAT and UPnP and so on, and even the oldest hardware still reasonably running having full support) has made people think it was all just always easy and obvious from the get-go. Yeah, it doesn't feel like that long ago when consumer routers with tiny translation tables would crash hard when anything opened a load of connections (think games but especially BitTorrent) because they didn't have much RAM. I think for most people the switching moment will be something they don't even see - their ISP enables it and off they go.