What is required of non-adult bat/ball shaggers in the live-ball area?

Non-adult bat/ball shaggers in the live-ball area are required to wear a batting helmet at all times to ensure their safety. The purpose of this requirement is to protect shaggers from potential head injuries that could occur from batted balls. Since the live-ball area is an active part of the field where balls can be hitting at high speeds, having a helmet provides a crucial layer of safety against accidents.

In contrast, the other choices do not promote the same level of safety or clarity regarding the expectations for non-adult participants. For instance, suggesting that they enter without protection undermines the importance of safety gear in active play. Similarly, stating that they should wear a helmet only when the ball is live creates a situation where they may be unprotected during other moments when a hit could occur. Lastly, requiring approval for entry into the live-ball area does not address the need for protective equipment, which is essential for the safety of all participants. Hence, the requirement for non-adult shaggers to wear a batting helmet at all times underscores the emphasis on safety in a live competition environment.