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.
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.