Just thought of another use, when I first saw Alexa in use at one of my daughters houses about three years ago. They live in a largish, 3-storey house, and had three teenagers. These would just used to disappear into their rooms doing whatever teenagers do in their rooms. I can remember when I had several of those at home, and me standing at the bottom of the stairs yelling myself hoarse trying to get individual or group attention.
In my daughters house, they have an Alexa in each of those bedrooms, and simply just tell their one in their Dining Room or Living Room to announce to all of them that lunch or dinner, etc is about to be served, or get a message to any of them individually. Also plenty of reminders inthe morning about getting dressed and getting out to school.college.
I use mine for reminders, when cooking something, or if I am going to have a power nap in the afternoon,etc.