Here's an article from the NY Times about children taking on the role as caregiver.
Below is a portion from the article:
"Across the country, children are providing care for sick parents or grandparents — lifting frail bodies off beds or toilets, managing medication, washing, feeding, dressing, talking with doctors. Schools, social service agencies and health providers are often unaware of those responsibilities because families members may be too embarrassed, or stoic.
Some children develop maturity and self-esteem. But others grow anxious, depressed or angry, sacrifice social and extracurricular activities and miss — or quit — school."