How is an individual under the age of 18 classified?

The classification of an individual under the age of 18 as "a child" is accurate because the term refers broadly to those who have not yet reached the legal age of majority, often set at 18 in many jurisdictions. In various contexts, including legal and social services, "child" encompasses individuals from infancy through adolescence. This term is utilized in child welfare laws, educational settings, and healthcare to recognize the distinct needs and rights of younger individuals.

While the terms "adolescent" and "minor" are also relevant, they carry more specific connotations. "Adolescent" typically refers to those in the teenage years, while "minor" is a legal term that applies to anyone under 18 but does not specifically indicate the younger developmental stages. The term "infant" restricts the classification to very young children, usually those under one year of age, thereby excluding a wider range of individuals under 18. Hence, "a child" is the most encompassing and appropriate term for anyone under 18.