Answer:
This practice is called subtyping.
Step-by-step explanation:
Society generally classifies people into different groups according to their beliefs, race, class, gender, among other classifications; this is known as social stereotypes.
Social stereotypes make people forget the individual characteristics of a person and categorize them according to the social structure they know; this causes the person not to be seen for their personal qualities but as part of a group.
Although sometimes there is a phenomenon known as a subtype, where people see an individual and think that he or she does not fit the stereotype and consider it an exception to the social stereotype.
For example,
Stereotype: Mexicans like spicy food.
Subtype: Marcos is Mexican and does not like spicy food; he is the exception because all Mexicans like spicy food.
I hope this information can help you.