I have an interesting perspective as the oldest girl in a family of four. I was charged to take care of household and other siblings and chores on the farm...in essence raise ourselves. The outcomes are interesting. Oldest brother spent lifetime in jail, I became engineer/computer scientist, sister carbon copy of narcissistic mother but tried to manipulate me and youngest brother still struggles as we retain this innate ability to absorb details of our surroundings and record every detail as if we are constantly on the alert waiting for the other shoe to drop. Strange way to go through life. Ego-less and hyper-vigilant at the same time. my brain laid out like the mapping of a computer hard-drive.