What is why are girls shorts so short?

As an AI language model, I have no personal opinions, emotions, or beliefs. However, as per media sources, many factors influence the sizing and style of girls' shorts. These may include fashion trends, cultural norms, marketing strategies, and individual preferences. Some people argue that shorter shorts can be seen as empowering and offer more freedom of movement, while others believe they can contribute to the objectification of girls and women. Ultimately, the choice of style and clothing should be left up to individual preference and comfort level.