You shouldn't turn your kids into monsters.
Nate has a boy and wants to raise the boy to be tough and independent.
Nate wants to decide on a training program for his boy.
Nate gets the boy involved in physical exercise and survivalist courses to teach him how to live off of the land.
Nate leaves his boy out in the wilderness for days and teaches him to only serve himself, taking from others if needed.
Nate's child becomes tough and independent and teaches survival courses for the military.
Nate's child grows up and treats his father disrespectfully, just as his father taught him to treat people.