I don't understand why home networks keep using the 192.168.1.* network.
Yes, all of 192.168.. (officially called "192.168.0.0/16") has been designated for such use,
buuuut so has all of the 10...* (officially called "10.0.0.0/8"),
so it would certainly be a lot easier to type and remember and so on if one instead used for example a network of 10.111.111.* and probably had one's router/equivalent on 10.111.111.1 as a result, making it super-quick to fill out those fields that add the "." and jump to the next subfield when three numbers have been filled in a subfield (e.g. Windows' classic network settings control panel) by just typing "10." and then holding down the "1" key on the keyboard.
All modern routers and devices with equivalent function have the option to just pick one's own network-space settings, so even though home-routers and such tend to get delivered with their address set to 192.168.1.1 people can just reconfigure it to use any of the three IP-address ranges reserved (https://en.wikipedia.org/wiki/Internet_Protocol_version_4#Private_networks) for such use. You don't HAVE to live with a suboptimal default just because it was delivered that way and just moving from any default may also add a tiiiny (almost, but not quite insignificant) bit of increased security.