Are headrests a legal requirement to use?

Headrests are generally a legal requirement in vehicles, as they are designed to prevent whiplash injuries during rear-end collisions. However, specific regulations can vary by country and vehicle type. In many jurisdictions, all new vehicles must be equipped with adjustable headrests, but the requirement for their use while driving may not be enforced. Always check local laws for the most accurate and relevant information regarding headrest regulations.