To be fair a lot of people only have a cable box (one ethernet port) and plug everything into their wifi router, which is also the DHCP server, firewall, etc.
I'd guess this is the most common setup for residences, it requires next to no technical skill other then plugging in the cables. Should definitely count as a router here no?
Not that I lack the technical skills to do otherwise, but my ISP's router works remarkably well (biband 802.11ac, IPv6, no packet loss, 4 ethernet ports, ...), so it's all I need.
And if I have a weird issue, that's a single device that I need to reboot (and I can even do it remotely).
Same situation for me too. I've done a bunch of networking stuff before with pfsense and plan to again, but I just moved and wanted something working. And it works great!
To be honest it's all most residences need, even if you're a technical person. Half of common home devices (xbox, printers, laptops, etc) have wifi, so for most people 4 ethernet ports is all you need(if any). It's almost 0 setup other then changing the passwords, and it works.
The only reason why it wouldn't work for you is if you have many wired devices, or want to get into the networking stuff.
I'm going to go out on a limb and say that most people don't need any ethernet ports. Most people just have a phone and maybe a laptop, tablet, printer, or smart television, all of which function perfectly adequately over wireless.
Even I don't bother with ethernet. There's no point; with <10 Mbps Internet speeds, too slow is too slow. The only thing plugged into the router is a second router for the detached garage/shop. Occasionally, there's need to transfer large files between two computers (games which can take multiple days to download), but temporarily stringing an ethernet cable directly between them does the trick.
I'd guess this is the most common setup for residences, it requires next to no technical skill other then plugging in the cables. Should definitely count as a router here no?