What is the main benefit of wearing a plastic shatter-resistant face shield?

Wearing a plastic shatter-resistant face shield provides comprehensive protection, not just limited to the eyes but also covering the entire face. This is particularly important for motorcyclists, as they are exposed to various hazards while riding, such as debris, insects, and other potential flying objects that can cause injury. A face shield can shield the facial area from impact and abrasions, thus significantly reducing the risk of severe injuries in the event of an accident or when encountering environmental elements on the road.

While the other options highlight certain advantages, they do not encompass the full extent of the protection that a face shield offers. For example, while it does protect the eyes, saying it only offers eye protection overlooks its wider benefits. Enhancing visibility in low light is more pertinent to specific types of visors or lenses rather than a face shield itself. Preventing sunburn is certainly a factor, but it does not address the primary function of guarding against physical impacts, which is essential for overall rider safety.