[slovette]

Apple is perfectly suited for this with the iPad. But if you’ve ever set an iPad up for a toddler.... you’ll know the nightmare of Apple ID, numerous repetitive authentication issues and their terrible “screentime” UI/functions.

It has completely fudged any hope I have in them doing it with any sort of ease.

What you need, is a device that does literally nothing else but a video call over WiFi. May take some hacking, but may be possible with some effort.