Direct to Consumer is Illegal in Most US States
In the US, the dealership network is well established and carries a lot of political power. Direct to consumer sales are prohibited. Franchise Lawyer, Roger M Quinland, explains the 2 principles behind the law making:
The first principle is that allowing automakers to sell cars directly to customers will endanger the businesses of automobile franchisees, which presumably do not have the economic resources to compete with manufacturers on vehicle pricing.
The second principle is that consumers need a knowledgeable, independent sales intermediary who is capable of guiding individuals through the buying process and can later be called on for support in the event of difficulties with the vehicle.
Tesla have found just how extensive this lock down is, the brand having to battle for the right to sell directly to consumers.