Re: Disimilarity between mature and immature behaviors?
The term "mature" denotes completeness in natural growth upto the next phase. For example, an unborn human child usually "matures" in about 9 months. After birth, he/she goes through the process of "natural growth" of body and mind for several years. The stage of "completeness" of this phase is the stage of "maturity".
Despite these technical meanings, we call a person "mature" if he/she independently takes rightful and better decisions. If he/she honours his/her promises/ words/ commitments and thus proves him/herself trustworthy. If he/she is able to take proper care of him/herself, his/her family and other dependents. If he/she proves him/herself as the source of dignity and honour for his/her family, other social organizations or may be for his/her country or nation etc.