Because it is important to know who has control of the thing if they control the thing to park illegally, scam people, or dump toxic waste into the river. It do

Because it is important to know who has control of the thing if they control the thing to park illegally, scam people, or dump toxic waste into the river. It does not need to be public, but the responsible party should be identifiable and accountable. To the extent that harm is minimal or can be efficiently mitigated if no responsible party can be identified, it is probably socially acceptable to sacrifice a little bit of accountability for convenience and reduced friction. But at scale it is ridiculous to allow the intentional and calculated ablation of responsibility against legitimate legal grievances.