> I wish more consumer devices supported multiple PSKs on the same SSID
Could you name any enterprise APs that do this, short of running your own custom AP software? As far as I know (would love to be corrected on this), Unifi APs can't do this, and they're at the very least "prosumer".
I was very excited by this, but I found that some of my dumber IoT devices would refuse to connect to the network if it used PPSK. If I connect them to a separate SSID I use for IoT devices with a basic WPA2 PSK, they work totally fine, but I didn't dig too much so it could also be user error
Aruba, Cisco, Extreme, Mist, Ruckus. The first I saw use it was Aerohive (now part of Extreme) and it took the enterprise market by storm about 5 years ago. For most enterprise deployments 802.1x (either username+password or certificate) makes more sense but once you get into BYOD land (say, senior living) not all devices support that (say an Xbox) but you still want to give a user a way to connect anywhere they go not just their main living area. Similar with the BYOD network on schools, give out the PSK to anyone staff and a year later the kids all have it and you have to change every PSK only device to a new PSK manually to fix it. Use multiple PSKs to give different groups of devices different PSKs, and even different staff different keys, and you not only contain the problem but can actually narrow down on the worst leak offenders as well.