Tracker is a coming of age story, how does Grandpa insure that John will be ready for tackling the responsibilities of manhood?

Grandpa decides John should take on more chores to prepare him for the eventual workload he will face. John does not mind the hard work, as he feels productive and accomplished when doing it. By ensuring John’s sense of responsibility around the farm, Grandpa helps John to come of age by making him aware of the realities of life, such as responsibility.