What is a potential risk of wearing a loose helmet?

Wearing a loose helmet poses a significant risk as it may fall off during an accident. The primary purpose of a helmet is to protect the head from impact and injury. If the helmet is not securely fitted, the force of a fall or collision can easily dislodge it, rendering the protective function ineffective. A firmly secured helmet stays in place, ensuring that it absorbs and distributes the impact energy effectively.

The other options, while they do touch on relevant concerns, do not directly address the most critical risk associated with a loose helmet. Although visibility issues and neck strain are valid points, they are secondary when compared to the essential life-saving function of keeping the helmet on during an impact. The idea of a loose helmet providing better airflow might be misleading, as proper fit is essential for safety, and any perceived comfort should not compromise protection.