> people don't like the idea of being filmed in public,

I don't think that this can be the main issue, given how nobody really cares about security cameras in public spaces or all the cameras modern cars can come with, nevermind dash cams.

People absolutely do care about security cameras, as demonstrated by ongoing opposition to Flock cameras. Security cameras have been widely deployed at a time when they weren't interconnected and people had to physically obtain tapes to look at the footage. The cost of engaging in stalking or mass-surveillance has lowered dramatically since, and people are strongly opposed to these technologies once they realize what the current capabilities are. The public never consented to any of this, but those responsible are maliciously framing the past lack of awareness as consent.

I think it has to do with how closely people think they are being recorded.

Someone filming/shooting in a park with a kit 18-55mm lens is fine. Swap that with a bulky 300mm or more and you are bound to get some questions asked.

A content creator casually shooting content in a mall is fine but if you start interviewing people, aiming your camera directly at them, it's at least common courtesy if not legal requirement to ask for permission.

Personally speaking, I wouldn't mind someone wearing these creeper specs in public but if they talk to me or if we eat at the same table, I would expect the courtesy of them putting the glasses away.

> nobody really cares about security cameras in public spaces or all the cameras modern cars can come with, nevermind dash cams.

Oh, people care. They just feel helpless about it all.

They like to be ignorant of being filmed. I don't mean that as an insult. "Ignorance is bliss"