The important difference though is that most security camera's aren't publicly posting the footage. I'd expect most people to be upset if a shop started live streaming everyone that went by the street.
Example I saw in person a couple years ago (Estes Park, CO): https://originaltaffyshop.com/taffy-cam.php
They had a sign out front saying something like "tell your mom to visit this website so you can wave to her". Nobody seemed to mind. Maybe the difference here is that it is clearly marked?