Which characteristic does not typically belong to demographics?

Demographics refer to statistical characteristics of a population that can be used to analyze and categorize groups based on specific traits. Common features of demographics include factors such as age, gender, and education level.

Age is a fundamental demographic characteristic that influences consumer behavior, marketing strategies, and social dynamics. Gender is another critical demographic factor, playing a significant role in market segmentation and targeted advertising. Education level is similarly important and often correlates with various lifestyle choices, preferences, and purchasing decisions.

In contrast, product quality is not a demographic characteristic. It relates to the attributes and performance of a product rather than to the population's demographic makeup. Product quality focuses on the specifications, durability, reliability, and overall effectiveness of a product which are independent of the demographic traits of consumers. Therefore, it is the outlier among the options listed.