Thank you. I think (or hope) I see your point.
I happen to were in exact scenario that you have mentioned, and I think I understand what you mean. Just as an anecdote - no, it doesn’t always work that way. At least it didn’t worked that way with me, because I held a different belief. It irked me for a moment - when I recognized a camera the association of topic-adjacent controversies sprung to mind. However, I dismissed it, and in retrospect I can assure that my behavior returned to natural. And if not for Meta specifically, it probably wouldn’t have bothered me at all.
(The person with glasses had an - IMHO - very legit use case for having a device like that, if this matters.)
But that’s just me with my weird beliefs. In my head a camera is a sensor. It’s no fundamentally different from wearer’s own eyes to me.
When I emphasized “actually” I was (very poorly) trying to say that it ideally shouldn’t be a problem, because its not what causes harm, only provides a way to cause it. But you’re right, when the abuse is de-facto the only prevalent spoken about use case, and legal side doesn’t match social expectations, it creates all those ill effects, so even if it possibly shouldn’t be problematic - it becomes such, in a sort of self-fulfilling prophecy’s way.
People nearly always go for the lowest hanging fruits, I shouldn’t hate us for this. But it’s really depressing, to be honest.