What is the purpose of a driver's license?

The purpose of a driver's license primarily lies in its role as an official document that certifies an individual’s capability and authorization to operate a motor vehicle on public roads. It serves as proof that the holder has met various requirements established by the licensing authority, which typically includes passing written, vision, and driving skills tests. This qualification is essential for safety, as it ensures that drivers understand traffic laws, how to control a vehicle, and safe driving practices.

Other choices may serve important roles in different contexts, but they do not encapsulate the primary purpose of a driver's license. For instance, while a driver's license can function as a form of identification and may be used in certain situations to establish residency or age for purchasing alcohol, these aspects are secondary to its main function of ensuring that individuals can legally and safely operate vehicles.