Vehicles, cars, are decentralized, identified by VIN's and license plates. To operate freely they require networks and nodes, roads and cities, with which to travel through, otherwise they would end up in oceans and backyard barbeques. These centralized structures have rules. They have signs, regulations and are policed to ensure each vehicle behaves properly.
Vehicles like crypto-currencies are also decentralized, identified by hash's and addresses. To operate freely and proliferate they must travel through networks and exchanges, otherwise you would have to source them through Big Al at the local bowling alley. The exchanges that operate today, all of them, are sub-standard. There are no signs, there are illusions and deception, mystery and unaccountability.
Change is coming.