Why is night driving more difficult than daytime driving?

Night driving is more challenging than daytime driving primarily because visibility is significantly reduced. When driving at night, a driver's field of vision is limited to the range illuminated by the vehicle's headlights. This limitation means that you cannot see potential hazards, traffic signs, or other vehicles outside of this narrow beam of light. As a result, it becomes crucial to be more vigilant and cautious while navigating, as you may not have sufficient time to react to unexpected obstacles or changes in the road conditions.

The other options provide contrast to this reality. The idea that you can see everything clearly and that streetlights are brighter is misleading since the overall visibility at night is much poorer than during the day. While fewer cars on the road might seem like a benefit, it does not directly address the core issue of visibility that makes night driving more difficult. Thus, the limitation of sight to only what is illuminated by the headlights is the primary reason night driving is more challenging.