Barbie vs Harvard on female development

I just couldn't help myself from one more brief post on the BarbieGirl keynote:

BARBIE:
Fashion play is an important part of girl's development.
Mattel's Chief Barbie Officer Rosie O'Neill in Virtual Worlds 2008 Keynote

HARVARD:
Many girls seem to think well of themselves in the primary grades but suffer a severe decline in self-confidence and acceptance of body image by the age of 12
from Supporting Girls in Early Adolescence