I have two older sisters, one is thirteen months older than me, the other is eight years older.
Growing up we were never close, we simply had nothing in comon.
My father was extremely mentally abusive and tok out his anger on me. Turns out he was a serial adulterer and wife-beater, although this never came out until he died - my parents divorced when i was in my twenties.
Because of his behaviour towards me, my mother over-compensated, which caused resentment in my sisters.
Matter were compounded when I married a divorcee with two children - my mother did not approve, and my sisters lined uip behind her, they have always behaved as though I am the 'little brother' who knows nothing.
We are estranged now, I expect we will meet at my mothers funeral, a day I dread. In my perception, they are arrogant, pompous and small-minded, doubtless they have similarly negative new of me.
I don't need or miss them as family, so I am fine without them, and they are close to each other, so I guess we all make the best of the situation.
Their approach has impacted on my family, I have always guided my daughters towards rapproachment when they have their (rare) spats, but as they are all pretty close, it doesn't last long.
I have always felt like an only child, and we all adapt to what we canot change.