'Camp Rock' actor Alyson Stoner on the true cost of child stardom

Starting at the age of 7, Alyson Stoner’s spunky dance moves, precocious acting chops and signature pigtails ensured a successful Hollywood run in movies like “Camp Rock” and “Cheaper By the Dozen.” These days, however, Stoner is pulling back the curtain to reveal the hazards of child stardom. “What I wish we would have known is that your overall longevity and holis