I often find myself thinking what life was like for these two growing up, beyond the snapshots we see on the show. Do i think it was as bleak as you paint it? Not quite, but i don't think that it was far off. The thing is with the full extent of sam's demon blood destiny now revealed if sam had of lived that normal life he craved how long would he have survived when y.e.d came calling? This was beautiful and wonderfully observed. You realise just how much Dean lost when he became the worlds littlest parent. :(