What is the primary purpose of headlights while driving?

The primary purpose of headlights is to provide visibility when driving at night or during periods of low-light conditions. This ensures that the driver can see the road ahead, including obstacles, signage, and other vehicles, thereby enhancing safety. Additionally, headlights serve to signal the vehicle’s presence to other drivers and pedestrians, particularly in situations where visibility is compromised. This dual function of providing illumination for safe navigation and alerting others contributes significantly to overall road safety.

While aesthetics and vehicle appearance may be considerations in the design of headlights, this is not their primary function. Similarly, while headlights can help alert others to a vehicle's presence, this is a secondary role to their main purpose of enabling visibility for the driver. The use of electronic devices does not relate to the function of headlights, as they primarily focus on illuminating the roadway and ensuring safe driving practices.