SMALL CHILDREN COME WITH a built-in paradox. The same developmental phenomena that make them so frustrating—namely, their immature prefrontal cortexes, which insist on living in the here and now—are what can also make them so freeing to be around. Most of us live by a schedule, with places to be and chores to do. But looking at Sharon, who doesn’t have a day job or a husband or other small children to attend to, you begin to see how it would look if we all unshackled ourselves from the clock. Sharon doesn’t bother taking her cell phone to the park when she’s out with Cam (though she adores
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