Amy is the only one person in her class who is not traditionally college-aged. she is much older. she will need to be sure not to her classmates by assuming they are all the same just because they are of the same generation.

stereotype                                                                                              

Explanation:

Stereotype: In social psychology, the term stereotype is defined as the tendency of an individual to develop mistaken ideas or beliefs that he or she can have about a particular group, person, or thing based on the outside appearance which may be considered as partly true or untrue.

Example: A man feels that women are less hardworking than men.

In the question above, the given statement represents the stereotype.

can you explain it better