Why is the horn considered an important safety feature in a vehicle?

The horn is considered an important safety feature in a vehicle primarily because it alerts other drivers and pedestrians to potential dangers. Its primary function is to convey a warning or notification in situations where communication through visual or other means may not be sufficient. For example, if a driver needs to alert another driver of their presence to prevent a collision or warn a pedestrian who may be stepping into the path of the vehicle, using the horn serves as an effective means of enhancing safety on the road.

While aspects like resale value or enhancing a sound system might be beneficial in some contexts, they do not relate to the core purpose of the horn in terms of safety. Additionally, while there may be laws regarding vehicle horns, they are not limited to specific areas but rather apply universally, making the legal requirement less relevant compared to the horn's immediate role in preventing accidents and ensuring safe driving practices.