@GoddersUK: You live in the UK, surely you know that if you are in a public place, I can record and post images of you if I wish. And when people do use these types of devices, eventually they will record everything, all the time, ever, and put it in the cloud, making some things public and some things not.
It's not "when". It's still very much "if". That's why we're having this dialog now, before it comes to pass. You're acting as if it's a foregone conclusion that there are going to be recording devices in every square inch of society. Even if we have such technological capability, we really ought to be asking "why?".