It's insane (but not surprising, sadly) to me that so many people have such a level of disdain for their fellow humans that they're willing expose them to Facebook's, or any tech company's, spying ways.

Most people don't care or are oblivious, not as "tech informed or savvy", is not out of bad intent. Plus, most tech companies control the media they consume.

My company's IT director, who's main function is cybersecurity compliance, wears these at work.

So much of the modern world has me feeling like I'm taking crazy pills.

People are quite happy to smoke and operate combustion engines in public spaces which literally gives everyone around you cancer. Having someone record you is very low on the disdain scale.

This is such a great device to avoid discussion.

... Having someone <tax you|arrest you|suppress your rights|force sterilization|anything short of death by cancer> is very low on the disdain scale.

They appear to be fantastic for those with limited vision.

Same thing with voice assistants like Alexa, for the average person having a live speaker listening 24 7 is kinda silly, but for someone who's legally blind it's a life changer.

Say at 90 you can't see well, you can say, "Hey Alexa, play some John Coltrane". It would be better for this all to run locally, but let's not let perfect be the enemy of good.

Amazon has many device variants, they can even be used to guide vision-impaired users indoors, e.g. navigating via a sequence of audio breadcrumb prompts across multiple devices.