Which of the following statements is true regarding helmet use in South Carolina?

In South Carolina, helmet use is indeed mandatory only for riders who are under 21 years of age. This law reflects a compromise aimed at ensuring the safety of young, less experienced riders, who are statistically more likely to be involved in accidents. Rider education and awareness about the risks associated with not wearing a helmet are critical components of motorcycling safety, especially for younger individuals whose helmets can significantly reduce the risk of head injuries in the event of an accident.

For riders over the age of 21, while it is encouraged to wear a helmet for safety, it is not legally required, which is why the other statements do not hold true. This approach underscores the importance of personal choice and responsibility for mature riders, allowing them to make informed decisions about their safety gear based on their experience and riding conditions.