you mean, like they do in almost every single retail establishment you enter? Or do you mean like on the streets? do you realize that your statement also impli

you mean, like they do in almost every single retail establishment you enter? Or do you mean like on the streets? do you realize that your statement also implies it's "rude" and "unethical" to take a photo in a public place if there's anyone in the frame you didn't ask permission of? Modern society has very much accepted that recording people unobtrusively without their consent is 100% ok. Not only does no-one refuse to go into an establishment that may record them without their consent, no-one gets upset when you take a selfie in public and capture the people behind you, or when you take a picture in a public park (or whatever) with many people in it. The problem, and I speak from experience here, is when you actually make people actively aware of the fact that a person they know is taking pictures that include them when they're not paying attention to the camera. Most people do not care that faceless entities are taking their photos and video of them without their consent. If they did, they wouldn't keep allowing their legislators to pass laws allowing this practice.