Rosie, as the oldest child, has taken on responsibilities like waking her siblings, feeding them breakfast, and getting them ready for school due to her mother's drug issues causing her to sleep late. She has assumed the role of parent in the family by handling tasks normally done by a mother or guardian. This could have long-term consequences for Rosie's development if the responsibilities become too burdensome. It also implicitly teaches her siblings that Rosie, not their mother, is fulfilling the maternal role in the home.