When visiting the residence of a user of such devices, how should a privacy conscious person approach the thorny issue of desiring one's voice not to be recorded and transmitted?
In 2020 we'll all be talking like gangsters. The G's have been privacy conscience for centuries which is why their language evolves at such a high rate.
For the record "Alexa turn off" and "Alexa stop listening" were NOPs on my Echo. But you can shout "Alexa ping" and "Alexa hello" to test if it is in the room.
Buyers of such devices don't seem to care.
Unless it affects them directly, just like how tobacco smokers don't see any immediate bad effects from smoking. But they know somewhere down the line something awful will happen.
That's true of many people when it comes to their privacy.