Smart Water Meters Already Exist! And guess what? I design them! And I put code in the firmware specifically to detect when YOU are taking a dump! Mwaaaahahahahahaha!
People, we barely have enough time to get the things to work before it's time to ship. There are no surveillance features. But, don't believe me, I only design the things.
There are no surveillance features.
Not yet maybe, but the conduit is there ready for Big Tech to do their magic.