What is the primary purpose of a life jacket while boating?

The primary purpose of a life jacket while boating is to keep the wearer afloat in the water. Life jackets are designed to provide buoyancy, which is critical in case of an emergency situation where someone may end up in the water. They help ensure that individuals remain buoyant and can conserve energy while awaiting rescue or attempting to swim to safety. The design and materials used in life jackets facilitate floating, even for those who may be unconscious or unable to swim.

The other options, while they may contribute to enjoyable and safe boating experiences, do not capture the essential function of life jackets. Providing comfort or increasing visibility does not address their life-saving role in emergencies. Similarly, while life jackets can aid in safety, they do not prevent a boat from capsizing; that function relies on various aspects of boat stability, design, and operation.