Let's talk about sex

Illustration: Brendan Leach

Kids in New York learn how to hail a taxi, order sushi and tip doormen before they’re five. So it makes sense to think that our sophisticated children must also know more about sex and how babies are made than their peers in, say, Boise, right? Not necessarily. Here’s how living in the city changes the way we should go about having “the talk”—and how it doesn’t.