The book mad the kid sound like a spoiled little rich kid with a chip on his shoulder. Watched the movie and they made him sound more like a hero looking to find himself and blamed his parents for everything. Book seemed more realistic as I know many kids/adults like that. Another hollier than thou kid that bit off more than he can chew.
Anyone that walks off knowing nothing looking to find himself will find more than he wants in that country. Hiked it for many years after high school and it is unforgiving. Almost bought the farm myself hunting Dall in the alaska range and we were ready.