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.
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"Adults think it is silly to play with children" in most cultures, says Lancy, who teaches at Utah State University. Play is a cultural universal, he concedes, "but adults aren't part of the picture." Yet middle-class and upper-middle-class Americans -- abetted, he says, by psychologists -- are increasingly proclaiming the parents-on-all-fours style the One True Way to raise a smart, well-adjusted child.
A contentious debate has bloomed.