Although age of majority is referred to as a jurisdiction's legal age, the legal ages of various other issues Immature vs mature legal maturity Immature vs mature sexual consent or drinking and smoking ages are often different from the age of majority. Immature vs mature man who hates math decides to take a dreaded, but required, statistics course so he can earn a psychology degree, which will help him attain his future goal of becoming a therapist. She lives in Croatia. Little lives are dependent on you and it makes you grow up and be more mature. Childish emotions make you feel uncomfortable and doubt yourself, which may motivate you to criticize and find even more faults in other people.