What is the plot complication of "Everyday Use"?

The conflict in "Everyday Use" arises out of the different
attitudes and values of the two sisters in the story, Maggie and Dee.  This conflict is
borne out in a dispute over household objects, for example, a butter churn and a quilt. 
Dee, having left home, has returned to take such objects for display at her home, while
Maggie (and the mother) find value in the "everyday use" of such objects.  The
importance of these objects for Dee is in their symbolic and decorative evidence of her
African-American heritage, but she has no interest in them as useful objects.  For
Maggie and the mother, a butter churn is meant to churn butter, not to be on display,
and the quilt is meant to provide warmth as a bed
cover.

These different attitudes and values represent
differing views on one's culture.  This is an important theme for African-Americans,
whose culture was largely ripped from them because of slavery.  But it is also an
important theme in general in the United States because we are a nation of immigrants. 
To what degree is a "mother" culture something that is part of our everyday lives and to
what degree is that culture used only as display?