I don't understand that, either. I don't use instagram, nor do I take "selfies"; I regard both as profoundly narcissistic, privacy concerns aside.

That said, the reason people get depressed by platforms like instagram is that they don't show real life but a photo-shopped, re-touched, carefully-curated version of life. People only see what others allow them to see.

Furthermore, I know that most of the footage taken by a surveillance camera is discarded. Most of the footage filmed by humans is created for a specific purpose and will be used. Someone else will likely watch it.

Finally, if I walk into a grocery store with a camera, I am going into someone else's establishment informed. If someone walks into a classroom and films me (like in the "Surveillance Camera Man" videos), there was no such agreement, implicit or otherwise.

I really do hate being watched, and hate others taking video. I hope surveillance cameras go out of use, and people stop recording everything on phones. However, there is a difference between that and some silly two-bit social network.

I'd say it's the latter. The selfie obsession is all about curating how you present yourself and your lifestyle. No one would want an IG or Facebook account with someone else at the helm.