In Everyday Use", why does Dee reject her cultural identity?

Although Dee has discarded her rural roots for an education, she returns to visit Mama (her mother) and surprises her by wearing traditional African clothing, changing her name, and having a Muslim husband. Dee is attempting to reclaim her heritage from Africa, but in the process, she is also rejecting her immediate African American background. The fact that she changes her name, from Dee to Wangero (an African name) disrespects her cultural heritage because "Dee" is a family name that can be traced back many generations. Dee asks to have a churn that her Uncle Bundy carved from a tree they used to have. However, she wants it for the wrong reason, saying that she will use it only for decoration