Which of the following is NOT a reason for firearm owner responsibility?

Engaging in competitive shooting does not directly relate to the broader responsibilities of firearm ownership, which primarily focus on safety and security. The primary responsibilities of firearm owners revolve around ensuring that firearms are safely stored to prevent accidents and unauthorized access, as well as maintaining control over how firearms are used to ensure they are handled responsibly and in compliance with laws and regulations.

On the other hand, the other options highlight essential aspects of owning a firearm. Safe storage is crucial in preventing unauthorized access, particularly by children or those who should not be handling firearms. Similarly, preventing unauthorized access directly ties into the overarching responsibility of ensuring safety. Maintaining control over usage involves being vigilant about who is using the firearm and under what circumstances, which is vital to prevent misuse or accidents. Therefore, while competitive shooting may be a legitimate activity for firearm enthusiasts, it does not embody the primary responsibilities that owners must prioritize for safety and compliance.