In all the talk of graphical downgrades no one seems much preoccupied with 'why?'. Why build something and then proceed to tear it down, piece by piece, in the hope that ever more diminished expectations about the final product won't be severe enough to...
Keep in mind that the boy and his father will beckon the other if he needs some help.
If you stick near fires you'll stay warm.
Make sure you leave the other character in a safe place when you wander off.