Have you ever got a call from any of these places telling you that you could do better this way or that way. Yes cameras are everywhere and everyone carries one . It is not about the camera , it is about the "coaching" . The person would sees a minute clip of something you did and then needs to coach you on how to be better. Yet this same person has never driven the truck you drive, driven down the roads you drive or even able to see what you see in the mirrors (when they are there and working). If i am in an accident or have footage of an accident in from of me they are great evidence , which is why many drivers buy their own, but no one is calling them to tell them , hey , you did not stop all the way at the stop sign or we watched as the car pulled in front of you and slowed down which made you slow down but you were still to close.
If the coaching was for aggressive driving calls or something like that it would understandable but to this point it has not