But it's a reduction of privacy compared to private vehicles. If the goal is to convert all transportation infrastructure into surveilled transportation then that is a loss in privacy for the general public.
Only the few who can afford luxury deserve privacy.
It looks quite foolish to me to never plan ahead and predict undesirable future events and then trying to prevent them ahead of time.
"Sorry, we can't fulfill your request for transportation to the protest for private ownership, but we can offer a free ride to the Colosseum" ;)