What is an example of an ordinary defense for someone under 16 years old?

The option stating that a child under 7 years old has no criminal responsibility is rooted in the legal principle known as "infancy." According to this doctrine, children who are below a certain age—often around 7 years—cannot be held criminally responsible for their actions because they lack the capacity to understand the nature of their actions or the difference between right and wrong. This principle recognizes that very young children do not have the same cognitive abilities as older children or adults, which renders them incapable of committing a crime in the eyes of the law.

In the context of defenses for individuals under 16 years old, this principle is particularly relevant. It acknowledges the developmental stages of children and underscores the legal system's approach to handling cases involving minors. The age of criminal responsibility varies by jurisdiction, but the premise remains that very young children are typically exempt from criminal liability.

The other options, while they could be valid defenses under different circumstances, do not specifically address the concept of criminal responsibility in relation to age in the same way. Self-defense, insanity, and intoxication can be applicable to individuals of varying ages but do not inherently relate to the immunity from criminal responsibility based on a child’s age.