The United States hasn't been around all that long. Many of the more idyllic images from the past are those Norman Rockwell paintings that seem deeply ingrained on the American psyche. After Norman Rockwell came images of the American family with television shows like Ozzie and Harriet and Leave It To Beaver. They set a kind of standard and established a goal for many Americans. Especially the white middle class folks and hopefuls.
Fairy tales make a strong impression on children.
Here they start to see and learn gender roles - who does what. Snow White, Cinderella, and Prince Charming. What lovely stories and powerful images. Nowadays, thanks to technology, mainstream American women routinely remove most of the hair from their bodies, not only for their own erotic pleasures, but so that society still thinks of them in terms of childhood innocence, and those fairy tale images. Smooth and innocent as a baby.