When setting up family wifi it doesn’t list any of our iPads as devices so I can group them together. ??? I have reconnected all on same wifi and all turned on and no devices show up on list so that I can group them together. ?? Please any advice?
You're certain you've connected them to the main network and not the guest network perhaps? And have you given them recognisable names via "Device" in Google Home/Wifi?
You could run a speedtest (e.g. in Safari go to speedtest.net) on one of them while watching devices in your wifi app (sort by "Usage real-time"), so that they'll pop up to the top of the list, making them easy to identify. Tap on the device and you can change the name at the top, then see if you can find it when creating a family group.