I’m shocked. Shocked!
I was listening to Reply All [0] yesterday, and one of the hosts had to explain to the other that, of course, the device has to listen to you to constantly in some fashion in order to know if you've said 'Alexa' or 'OK Google' or whatever.
It hadn't even occurred to me that people wouldn't know that.
[0] https://www.gimletmedia.com/reply-all/139-the-reply-all-hotl...