I'm also opposed to nearly everything that FB does, but I purchased the Ray-Ban Meta sunglasses a year ago anyway. I was preparing to go on a family vacation and I wanted to test them for staying in the moment while still capturing memories. I also prefer candid images where people aren't posing for the camera but are acting naturally.
The great thing about having a camera on your eyeglasses is that you can still be in the moment; mostly. I do hold more still when I take a picture or shoot a video.
I make people in my party aware that I'm wearing them and that I'll be taking pictures. If I'm in public, however, I won't tell everyone around me. That's usually a case where people with me also have their phones out snapping pictures though, so it's pretty obvious that camera's are going.
I'm still struggling with the privacy implications.