Answer:
symbolic ethnicity theory
Step-by-step explanation:
In the field of sociology, symbolic ethnicity can be described as as cultures which are loved or make a person nostalgic and these cultures do not need to be incorporated into the everyday life of a person.
The heritage of food and holidays is loved by the people of Tustin. However, they do not need to incorporate these cultures in their daily life. This represents an example of symbolic ethnicity theory.