It's really interesting that the big objection is really about sharing the resultant video (widely). I actually feel the same, I don't really mind if I'm at th

It's really interesting that the big objection is really about sharing the resultant video (widely). I actually feel the same, I don't really mind if I'm at the gym and in the back of a video someone's taking of themselves to review later to take notes on their form. I actually do kind of care if it gets posted to YouTube and now 100,000 people have seen me covered in sweat or struggling with something or whatever. It's something that's technically 'illegal' in a private space here in the UK, so why do we all just accept/allow it anyway? YouTube or Instagram could easily work out if the video was taken indoors and show a 'are you sure' message. Just a thought. It's not that big a deal, of course, though to some people it might be (for good reasons).