I would say courage is grown inside the person. In order to gain more courage, a person has to expose to some obstacles and activities to make a person to grow stronger, better and more courageous to do certain things in life.
You cannot found courage without growing it. Courage cannot be made within a few seconds or short time. Courage is grown overtime.
For example courage to do performance. We may not be born to sing/dance well when we were just born. But with practice and exposure, we can learn how to sing/dance and have the courage to perform to the public and give a good performance.
So courage is grown. Don’t you think so?