What if your boss told you "I want you to wear a camera that records EVERY SECOND while you are on the clock". Would you willingly accept?
In the Police Dept. I do work for we are testing body cams but only with the ability to turn them off. Why? Due to Freedom of Information that video is available to the public upon request. Think of all the Youtube moments that would give rise to, from bathrooms to discussions about possible suspects.
"Always on" cameras will never be the standard for body cams.