Why should firearms never be handled under the influence of substances?

Firearms should never be handled under the influence of substances because impairment significantly affects crucial abilities such as judgment, motor skills, and decision-making. When someone is under the influence, their cognitive functions can be clouded, leading to poor choices and potentially dangerous situations. This can result in mishandling the firearm, which poses a risk not only to the individual handling the firearm but also to everyone in the vicinity. It's essential for firearm safety that individuals remain fully alert and aware of their surroundings to ensure proper handling and to prevent accidents.

The other options suggest benefits or ignore the risks presented by substances, which undermines the core principles of firearm safety and responsible handling.