The answer to this question can vary depending on the specific laws and regulations of the jurisdiction where the private property is located. In many places, helmet laws primarily apply to public roads and highways, while regulations may be more relaxed on private property.
In general, on private property, individuals have more discretion and flexibility regarding safety measures like wearing helmets. They may choose whether or not to wear helmets based on their personal judgment or preference. However, it is still recommended to prioritize safety and wear a helmet while riding a bike or motorcycle, even on private property, as it can significantly reduce the risk of head injuries in the event of an accident.
It's important to note that laws and regulations can vary by country, state, or local jurisdiction, and they can change over time. To get accurate and up-to-date information on helmet requirements on private property in a specific area, it is advisable to consult the local traffic laws or seek guidance from local authorities or legal professionals.