Most people have very few smart home devices, let alone situations such as yours. I've seen numbers that only 25-35% of US households have any brand of smart home gadgets, of any sort. It'll do alright, but it's not going to be overly successful. Just like Amazon Show and Google Nest Hub are around, but not terribly common or popular. The most common device I've seen is the Amazon Echo pucks, and the nest speakers after that.
No one in our household or extended really uses FaceTime, so this doesn't make much sense for us...and you know Apple isn't going to support any other two-way video chat on these.. 🤷🏻♂️