What went wrong is that the federal government didn't build or legislate a national charging infrastructure to match the scale of the interstate highway system.
They could have strong-armed the states into it with a combination of funding the construction and the way they mandated the 21 drinking age: by threatening to withhold highway funds.
They could have strong-armed the states into it with a combination of funding the construction and the way they mandated the 21 drinking age: by threatening to withhold highway funds.