My speaker is listening

Smart speakers are all over the place now. I feel the benefits in terms of good sound and convenience outweighs any potential downsides or privacy concerns of a speaker listening to me in my house.

This sort of thing would have been science fiction a few years ago. Now it is common place.

I am slightly concerned that my children will soon be old enough to understand their speaker is listening, and be able to ask Google or Alexa for something directly. I need to organise some security measures.