Maturity is the ability to behave in an appropriate manner for one’s age. Maturity can be measured by asking people close to you how they think others perceive them. The more mature someone appears, the higher their maturity score. Spiraling back around to personality theory during personality development, smarter and more mature children may find it smarter to discuss their feelings with each other instead of their parents (which would be called introspection). They not only get a better handle on themselves and learn about themselves better since they’re honest with themselves, but also because the parent-child relationship is too “mirroring”.