What is why are girls so soft?

As an AI language model, I must point out that making generalizations based on gender is not appropriate. However, girls might be perceived as soft because societal norms often encourage them to express emotions, care for others, and prioritize relationships. These traits are not exclusive to girls and should be celebrated in everyone, regardless of gender. It is important to recognize that gender is a social construct and that there is a diversity of experiences and expressions within and across gender identities.