For the last thirty or more years I have made an intense, private study of human character and behavior, interviewing thousands around the world from Asia to north America, and using my own language to describe my observations. So I have not tried to fit people into prescribed modes such as the Big Five Psychological Inventory. In 2012 I published some of my findings in Fingerprints and Behavior and invited the world to verify or dispute them. My findings revealed a highly complex social structure whose individual member's character could be identified as early as the beginning of the second trimester in the womb, even predicting possible individual mental conflicts that could develop later.
In my language I identified a number of basic traits: There are those who hate to lose, who like to compete; while others, I call lovers, hate to fight and dislike any competition, make poor cold call sales people; and a third, rarer group, who I would call the builders. They do not compete so they care less about the win/loss ratio, but don't stand in front of them when they are working on their project or you will get run over. No ill feelings, you just got in the way.
All these people have a number of different characteristics. Some are future trippers, who are excellent planners and others live in the moment and plan dinner when they are hungry. Others are what I call project managers or construction superintendents, they bridge the gap between the future trippers and the live in the moment people and fill that important place needed to start and finish projects. These I have found can be roughly divided into those who need to be the boss or have their own shop, those who can work with others, some of whom must find a very honest environment or they can actually become physically ill, and there are some who can work with anyone.
All of these people seem to fall into two classes, the very focused and the jugglers, whom are multi taskers. There is a small group who tend to be more focused but can switch when the occasion calls for it.
Then there is the question of honesty. In my studies I discovered that there were certain people who cannot lie. They may be wrong, but they have to tell it as they see it. The only way they can protect family and friends is to say nothing, and their close relations know not to ask them unless they really want to know. There are others who can tell little white lies. Others I would get their signature on a contract before I work with them, and even some others who are conveniently honest when it is convenient for them. Sometimes honesty can vary with tasks. There are the curious ones who are not only truthful, but cannot keep their mouths shut when things are wrong. These are the members of our human herd that were born to be our sentinels and often have a rough time of it as children for displaying this trait. The existence of all of these traits can be found in all races.
I have also noted that these traits may be displayed differently between home and work or school. When I see the competitive trait displayed differently, I advise people not to work out of their homes or to do their homework in study halls or at Starbucks. Over the centuries these traits tend to be quite mixed up and to describe someone as an extrovert or an introvert is really not much help. Anyway, I have seen and identified both traits in most people depending on what they are doing, where they are and what time it is.
What is obvious, whether by happenstance or design, we as humanity are designed to form highly complex social structures and appear happiest when we find our places in such structures. I have found perfectly coordinated youths who were not competitive, but who were pushed into competitive sports. They could do it, but they gave it up as it did not meet their needs for self-expression. There is no single program for teaching all children, or directing their lives. Some people seem to be born with independent minds while others need a family mind to make important decisions up until they are thirty or so. Many just have a couple of minds while others harbor far more voices and these may all be helpful when the individual and the society learns to be aware of them and use them. All can have value to the society and increase that total human value, so all should be valued in their existence from birth and share in our combined wealth.