In the 1920s, the look consisted of "middy" blouses and over-the-knee pleated skirts. By the 1950s, the quintessential uniform of plaid kilts and Peter Pan collars was established.
So, why is this type of content so popular? One reason is that it taps into our nostalgia for childhood and adolescence. Many people find the innocence and energy of young girls to be endearing and entertaining. Additionally, the relatable nature of the content – often featuring everyday situations and experiences – makes it easy for viewers to connect with the girls and feel like they're part of their lives.