I have found Al Mohler's thinking on maturing into manhood very thought-provoking. I've heard him speak on the issue of the problems of an extended adolscence before, and it was very good. Now he has offered two articles on the marks of manhood: Part 1, Part 2. Mohler writes,
This series represents my attempt to provide an answer that will beboth faithful to Scripture and applicable to the real-life challenges faced by men today. More urgently, it was good for me to think through this question and articulate these hallmarks as I seek to show my own son how to grow into biblical manhood. I am absolutely sure that there is more to be thought and more to be said, but this may help us all to see the challenges before us.