Maybe his Dad is afraid the kid will miss the shot. He probably just wants to make sure that if the kid hits within 10 feet of the deer, the concussion will drop him anyway! Only bad thing is, all of the meat will be blood-shot; Including the kid's shoulder and chest.
I certainly hope that someone is pulling our leg on this one. I agree, if it is for real, it borders on child abuse. Sad thing is, if it is real, he'll probably make it so the kid never wants to shoot another rifle the rest of his life. Good way to create another anti-hunter.