How can all the people passing before the camera to opt in?
Sometimes things are illegal and you can't get around it. Just because the company spent a lot of effort on it doesn't mean anything.
Our neighborhoods are not large public roads, they are typically 100-400 home communities. You would never have to enter the community.
The police can’t even film protests to identify protestors.
For traffic situations there are specialized systems that open a physical filter in front of a camera lens only if someone is detected to be speeding, and the camera is then limited to that lane, for that short moment.