Father and Son

I think a relation between a father and son should be very close anyway in this stadium of education I assume the boy is in. But under such circumstances it must be even closer to go on and fight for surviving.

Obviously the boy lost his mother somewhen before the story starts. So the only natural parent is his father and of course he  is his the one where he gets his energy from to go on. The Father also lost everything what is worth living for exept for his son, so he made it his duty and his task to take care of the boy and to save a better future for him.

Despite those apocalyptic circumstances he is trying to live a life with ethical values and a normal education. He is trying to stick to habits so that the boy and he himself can better deal with the situation. Father and son are the "good guys" in this burnt world.

In my opinion the relation of father and son is changing in the way of the depth of conversations. First their conversations are just about food and reading books for the boy, but then the boy starts to ask his dad some questions, which are unusual for a boy to ask. Such as what his father would do if he died. I guess that gets their relation to another level because both of them know the whole dimension of their situation...