How is it passive? You are literally choosing to use a camera by pointing it in a specific direction and press a button to make it record. The problem is how people who record videos of others are perfectly fine with it while other people might not be. It's not other people seeing me or noticing me that is the problem. It's random people I don't know recording me because I don't get to choose how the video/recording stored on their device will be seen or distributed in the future.
Businesses recording security footage is different because there is some type of social contract that they won't publicly release it. If I knew for example that the grocery store I shop at was posting security videos to youtube I would go spend money at another grocery store. I can choose not to go to a sporting event concert because I don't want to be on a jumbo tron. I have way to choose whether or not some random person will record me while I'm working out or taking my dog out.