My main concerns are the US becoming a surveillance state (probably first and foremost - not to say we haven't already arrived or are well on our way) and secondarily the way average citizens are allowed to violate each other's privacy. Some can argue that when you are in public you assume zero privacy, but in a world where a local incident that be dealt with at a local level occurs, is recorded, and then goes viral multinationally or where bad actors want to be lazy we start to face issues where this simple understanding of privacy breaks down and has intersections like this one.
Maybe if we could (somehow) create some kind of cultural norm against that?
Maybe the real solution to the problem you raise is cultural rather than legal?
Maybe sometimes journalists and editors need to stop and say "no, we're not running this story, we are going to ignore it, some random nobody doing some offensive thing in some small town that nobody has ever heard of – that isn't news"
A lot of these social media viral things get greatly amplified by the traditional media. Indeed, sometimes the two seem to act in a mutually reinforcing loop – traditional media coverage produces more social media which in turn encourages more coverage from the traditional media
Which would mean no more dashcams. Dashcams are very useful in assigning blame in accidents and helping to determine their causes (not only in cases of human negligence, but even accidents due to mechanical failures/design flaws/etc)
And dashcams do pick up pedestrians on the sidewalk, etc.
No more Google Streetview either, which a lot of people (myself included) find very useful – it lets me familiarise myself with how a place looks before I visit it
If I take my children to the park to play, would I be allowed to take a video of their play to send to my wife? What if a stranger is visible in the distance in the background of the video?
It would do nothing about the immense quantity of CCTV footage of privately owned public places such as shopping malls. And it might even encourage moving public property into private ownership – if the local government aren't allowed to perform CCTV surveillance of a street, but if it were privately owned its private owner could, then transferring public streets into private ownership might be promoted as enhancing public safety/security. Transfers of public streets into private ownership have already happened – in 1999, the Salt Lake City government sold a portion of Main Street to the LDS Church, which has since used its ownership of that section of street to remove protestors from it [0]. But your proposed law might make such moves more popular
[0] http://www.thisweekinmormons.com/2017/02/remember-controvers...