That sets the stage for overreach. If the data is public, and you are getting stalked, there is nowhere to hide. If corporations/organizations/agencies want to exploit your emotions for ads at any given moment of the day because they can see you and almost everything that happens to you, they can. If a lunatic leader gets elected who wants to kill off a specific group of people (nothing lasts forever, including political stability), its now much easier. With all that in mind, can I ask why?

I think what people do in public should be heavily witnessed and recorded

What for? I don't understand why you want to record some stranger jogging, drinking coffee, smoking, eating or simply walking and minding their own business. What am I missing?

Why stop at the public? Crimes are committed in private too, you know. I have an idea — let’s increase the scope of surveillance to private activities as well. If everyone is surveilled, then really, no individual person is surveilled, right? This only works if we install surveillance everywhere though, with no exceptions.