I was the eldest of three, the middle child has (we believe but because of his age a diagnosis wasn't easy to get) Aspergers so I spent most of my childhood being the big girl, not putting pressure on my parents etc because they had my brother and the baby to look after.
It's made me very aware of how I treat my eldest. My youngest naturally needs more care and attention but I make sure I balance it. She spends about as much time on my lap, I take her out to special places on her own and I give her a lot of praise for being the big girl, I don't expect her to just stand back and let me look after her sister.
So I was wondering if your place had affected how you treat your own children, whether you have a natural affinity towards one or making sure that they don't feel something that you felt or whatever it was.