[bluGill]

Drivers are human, we cannot drive safely when mixing with pedestrians or a lot of other cars.

It isn't possible. Therefore if we are to drive the road environment needs to support it, which means keeping pedestrians away, or speed limits of 10mph when we must mix. To give us enough space Des Moines needs to expand to 20 lane freeways (that is Houston levels of roads in a city 1/3 the population).

You can't blame drivers and get anything done as humans are not capable of getting better.