Parents bear great responsibility increasing this value within their children. It builds capacity for depth of involvement and the inner strength needed for success when what is started is finished. Parents need to help their child to deal with failure. To try hard and to do one's best is a value more important than winning. To fail after putting forth great effort, yet to be supported in what has been done well, is important to maturing as an adult.
Setbacks become part of the learning experience.
Through such experiences, a child learns personal limitations and how to maximize personal strengths. Parents need to teach personal values over conformity. Students need to do what's right before they do something because everyone else is. The peer pressure on middle and high school students is incredibly high. Parents are very important to developing character in their children.