Mensch is a person of integrity and honour. A man who is steadfast, wholesome, virtuous, dignified, praiseworthy and respectable, in a word mature.
1 Cor. 13:11 When I was a child, I spoke as a child, I understood as a child, I thought as a child; but when I became a man, I put away childish things.
Childish thinking is disconnected from sound reasoning developed through knowledge, experience and growth in critical thinking, it is distanced from the healthy, secure thoughts and decisions of a grown (fully developed in behaviour and thinking) man, a man endowed with courage, intelligence, strength, and other noble attributes.
There are inherent characteristics of children which are to be evident in Christians, those being docility, mildness, gentleness, freedom from ambitions, pride, presumption and ostentation. There are inherent characteristics of children, their inability to discern evil and covert influences, their inclination to bow to peer pressure, their credulous and gullible nature, their inquisitiveness, that make them prone to fall prey to persuasions and biases and by these factors the previous list of characteristics can be contradicted. It is in this that the maturity of manhood is to be understood, the removal of the winds and waves of vacillating thought replaced by a constant, firm and dedicated mindset.
1 Cor. 14:20 "Brethren, do not be children in understanding; however, in malice be babes, but in understanding be mature."
Ephes. 4:14 "...that we should no longer be children, tossed to and fro and carried about with every wind of doctrine, by the trickery of men, in the cunning craftiness of deceitful plotting,..."
There is in maturity an expectation that there is a stepping away from decision-making, with any involvement from a strong emotional context. "I was affected as a child. I was thrown into a transport of joy or grief on the slightest occasions, which manly reason taught me to despise."-Doddridge. The vaccilating emotional range of the juvenile and youthful age are to be contrasted by the control exhibited by the mature man, who is able by force of will and resolution to view life and circumstance without overbearing affections determining his responses and actions. Feelings, strong and overwhelming vicarious experiences, uncontrolled catharsises are to be despised in the adult male and are usually seen as a sign of weakness; a reason for contempt of the inability of the adult male to cope; a validation for the male-mystique 'real men don't cry'; an indication of a lack of maturity; a cause for questioning of the 'measure of the man'; the authenticity of the character of the man viewed as doubtful.
This is somewhat problematic.