Why do little girls like pink?

I had wondered if girls liked pink because of some innate characteristic (perhaps some genetic predisposition to pink) or whether because they were being marketed pink stuff. Peggy Orenstein has a partial answer:
When colors were first introduced to the nursery in the early part of the 20th century, pink was considered the more masculine hue, a pastel version of red. Blue, with its intimations of the Virgin Mary, constancy and faithfulness, was thought to be dainty. Why or when that switched is not clear, but as late as the 1930s a significant percentage of adults in one national survey held to that split. Perhaps that’s why so many early Disney heroines — Cinderella, Sleeping Beauty, Wendy, Alice-in-Wonderland — are swathed in varying shades of azure. .... It wasn’t until the mid-1980s, when amplifying age and sex differences became a key strategy of children’s marketing (recall the emergence of “ ’tween”), that pink became seemingly innate to girls, part of what defined them as female, at least for the first few years. That was also the time that the first of the generation raised during the unisex phase of feminism — ah, hither Marlo! — became parents. “The kids who grew up in the 1970s wanted sharp definitions for their own kids,” Paoletti told me. “I can understand that, because the unisex thing denied everything — you couldn’t be this, you couldn’t be that, you had to be a neutral nothing.”
From: The New York Times Magazine article What's Wrong With Cinderella