Answer:
Following are the lines that show faulty reasoning in the given passage;
1- Do not "nearly half" of all accidents involve men, and would not the streets be safer, then, if male drivers were outlawed?
2- And what about the percentage of accidents that occur on paved roads—should we do away with paved roads too?
It all boils down to the driver being mature enough to know the risks with rash driving which is being ignored in the above arguments.