Stereotypes

Stereotypes are cultural constructions with the premise that, knowing one thing about a person, we know another, unrelated one.

They are most commonly assigned to sexual contexts, national origins, and religious beliefs, but turn up pretty much everywhere in life. Stereotypes include: age, hair color, muscle mass, what school one went to, occupation, brand of car one drives, dietary preferences, politics (assuming one idea from knowing another), you name it.