Explain how someone can grow up so fast and how someone else can never grow up at all?

Someone can grow up quickly due to life experiences that force them to take on responsibilities early, such as caring for family members or facing significant challenges. This often leads to accelerated emotional and psychological maturity. Conversely, someone may struggle to grow up due to a lack of opportunities for development, enabling environments that foster dependency, or unresolved trauma that hinders emotional progress. Each individual's circumstances shape their growth trajectory in unique ways.