Why are streets usually asphalt and sidewalks usually concrete?

Question

Why are streets usually asphalt and sidewalks usually concrete?

In: 10

Answer 1

Concrete roads are horrible to drive on.
They are usually made of concrete slabs, as it seems it is either impractical or too expensive to pour a whole road, and after a while the seams between the slabs wear.
It is like driving on a train track – going over the sleepers.
Horrible.