Final answer:
Drivers should give cyclists extra room as they are unpredictable and may need to maneuver quickly due to road conditions or obstacles, and they are more vulnerable than vehicle occupants.
Step-by-step explanation:
Drivers should give cyclists extra room primarily because they Are unpredictable. Unlike motor vehicles, bicycles can more easily encounter difficulties with road conditions such as potholes, wet or slippery surfaces, or sudden obstacles, which may require them to make quick maneuvers. Cyclists also do not have the same level of protection as those in vehicles, making the consequences of collisions potentially more severe. Therefore, giving cyclists extra space not only helps in preventing accidents but also contributes to a safer sharing of the road.