Why does Dee think Mama and Maggie don't understand their heritage?

In "
," Dee asks to have two quilts that were
made by relatives. However, Mama explains that she
plans to give the quilts
to Maggie. Dee becomes upset and claims that Maggie will not
"appreciate" the
quilts and that Maggie will put them to "everyday use"
while she plans to
display them. Dee places value in the idea of things while Mama places value

in the usefulness of...