We have an Alexa in our house, and use it all the time. For the kids moving into these apartments they’re building, I’m sure the high-endiness of having voice controlled lights and music everywhere is a big selling point.
Nobody outside of our little tech bubble ever thinks about how this stuff works, and they likely don’t care. If they do (like my wife and I) we just treat it appropriately.
I guess it’s kindof like the way we all used to look at “work networks” — it was WAY faster than your home connection, but the IT guy could probably spy on you. So use it for fun stuff and think it’s cool, but if you ever didn’t want the IT guy to have the option of seeing what you were doing, use something else (or in our case at our house: turn it off)