This post is disturbing...so do you think that our prisons are full of only children and all people with siblings are leading full and productive lives?
How about some people are sick and/or evil due to many possible factors and some are not. I'm not sure that the number of siblings or sharing a room with a sibling is a contributing factor.
That is an astounding leap of non-logic. My first point was that the little punk couldn’t have stockpiled his weapons if he hadn’t had privacy. My second was that if he’d been part of a close family he might not have had the urge to stockpile them in the first place.
The sense of isolation and aloneness can be more accute for only children.