At the risk of getting political, those regulations around child care providers were put in place due to rampant child abuse by care providers. No one just sat down one day and said "you know what we need, some overbearing regulations for no reason". Children were dying at the hands of their care givers. The regulations only seem unnecessary because they're working. Now that children aren't being beaten to death by their care givers quite as often, people now have the luxury of asking why there are so many regulations.

Cameras have blind spots, can be turned off, and if you really want to monitor them, as a parent you have to be able to watch the camera all day to ensure nothing bad is happening while your back is turned. Hardly an ideal situation for a working parent.