From the Boston Globe: Leave those kids alone.

What could be more natural than a mother down on the rec-room floor, playing with her 3-year-old amid puzzles, finger-puppets, and Thomas the Tank Engine trains? Look — now she’s conducting a conversation between a stuffed shark and Nemo, the Pixar clown fish! Giggles all around. Not to mention that the tot is learning the joys of stories and narrative, setting him on a triumphal path toward school.

A "natural" scene? Actually, parent-child play of this sort has been virtually unheard of throughout human history, according to the anthropologist David Lancy. And three-fourths of the world’s current population would still find that mother’s behavior kind of dotty. [continue]