The bigger hurdle is the cost to redo roads. 2-6 million per mile of road. 4 million+ miles of road in US. It’s not so much the roads though, it’s the other c

The bigger hurdle is the cost to redo roads. 2-6 million per mile of road. 4 million+ miles of road in US. It’s not so much the roads though, it’s the other cars and other things/people/animals in the way