I would question all on-street parking. When I park a car on a public street, I am making use of the public way for a private use - storage of my property. If there were no cost to society for this use, then I would have no problem with it, but by using the street for parking we are reducing the capacity of the road (fewer travel lanes), as well as reducing visibility of pedestrians or vehicles entering from side streets. Where else would we accept spending public money to provide private individuals with space to store their private property at the expense of public safety and public finances?