Age appropriateness is the progression of behavioral norms largely agreed upon within a society or among sociological and psychological authorities to be appropriate to a child's development of social skills. These behaviors are divided into a number of development stages based upon the child's age.

Age appropriateness is the progression of behavioral norms largely agreed upon within a society or among sociological and psychological authorities to be appropriate to a child's development of social skills. These behaviors are divided into a number of development stages based upon the child's age.