People deliberately run people over with cars all the time. It is in my best interest to have a list of every car owned by my neighbor along with his DOB, how many times he failed the driving test, when he got his license and whatever other information related to vehicles and licences.
People engage and escalate disputes all the time, believing that the other party is unwilling or at least incapable of conveniently murdering them. Cars change that calculus; it's in my best interest as a member of the public to know whether my neighbor might murder me rather than merely being angry at a dispute.
