Peter has a choice: Pay for a train ticket to commute, or pay for off-street parking. Both options cost money. If Peter dislikes that cost he can move to where

Peter has a choice: Pay for a train ticket to commute, or pay for off-street parking. Both options cost money. If Peter dislikes that cost he can move to where Paul lives and vote to allow strangers to park for free in the street outside Paul's home (which is then also the street outside Peter's home).