Answer:
Gender stereotype
Step-by-step explanation:
Gender stereotypes are pre-formed ideas on how a particular gender operates. Some examples of gender stereotypes are: girls play with dolls and boys with cars, boys don't cry and don't show their emotions, girls have to be quiet and behave.
Jim's father automatically thinks that because Sally is a girl, she likes to play with dolls. He does not question his mindset because he believes in the stereotype which he probably heard and witnessed his entire life. Stereotypes are very difficult to alter or to break because they have become socially acceptable and seen as a norm. They are very damaging to the aimed target group because they are based on generalization and prejudices.