Are you talking about cellphones?
For this I have to give in a lot of my privacy and hope that I can trust the device/software manufacturers - meanwhile prevent what I can.
What does google home or amazon echo brings to my life that is so ground breaking that I need another data-gathering device? I may come off as ignorant because I probably am. But I'll reconsider if somebody seriously can tell me how vastly these devices improved their life.
The killer feature for me is being able to add stuff to our family grocery list. It's so much better than opening an app, swiping around and typing on a tiny keyboard.
Once you get used to doing things via voice it's hard to go back.