Maturity is perseverance, the ability to sweat out a project or a situation in spite of heavy opposition and discouraging setbacks. Maturity is the capacity to face unpleasantness and frustration, discomfort and defeat, without complaint or collapse. Maturity is humility. Maturity is the ability to make a decision and follow through. The immature spend their lives exploring endless possibilities and then do nothing.
Maturity means dependability, keeping one's word and coming through in a crisis.
The immature are masters of the alibi. They are conflicted and disorganized. Their lives are a maze of broken promises, former friends, unfinished business and good intentions that never materialize.