ON A ONE-BLOCK STRETCH of Broadway between Broome and Spring Streets, dozens of baggy-jeans-wearing, Starface-pimple-patched, matcha-sipping 12-year-old girls wait on line. They’re here for a quintet of stores—Edikted, Brandy Melville, Princess Polly, Garage, and PacSun—that make up a new Tween Row of sorts, where polka-dot ruffled miniskirts and early-aughts-looking baby-doll tank tops sell for prices the equivalent of an hour or two of babysitting. Inside the stores, there are more lines—at the dressing rooms, at the cash registers—but for the teens, it’s worth the wait, even if only for the selfie.
“‘Oh my God, it’s so crowded. There’s so many tourists. Ugh, why do you want to go there?’ ” says 13-year-old Ella Wolf, mimicking her parents’ reaction to Brandy Melville (519 Broadway), which is typically her first stop on the…