Secondly, I once asked your question and a friend answered that most managers land their position by necessity for the company. They were here when the team grew. Or created their company, so they had to manage it. Most managers just deal with what is happening. Most people don’t know what they are doing, or why they have been selected. Sometimes there is no rationale. So don’t sweat it too much, because being relaxed and easy to manage plays a good part in career success.
For me it was much easier to be a manager than be an employee, because as an employee you are expected to compete and establish your presence (such as speaking up in meetings); As a manager you have entirely different incentives, it was way more intuitive for me.