I have one "baby" sister (she's 75) and I adore her. But I always wanted an older brother and I wonder if I had had one how we would have gotten along in old age.
Why did I want one? Well I was very shy and introverted and I always though an older brother could help me through the awkward stages of childhood. A shining night in armor who'd always look out for me. I expect that is what older brother are obligated to do aren't they? And not just when you're a kid but your entire life right?
I have one brother and one sister (both older). I have never been “close” to either, but I’m furthest from my brother. Beginning around the time I was 8 or 9 my brother became jealous of me. I was smart and he … well… let’s just say he preferred brawn to brain (a bully). When I was in my 20’s we even had a few physical fights (he initiated them and I lost). He had problems (“burdened” with a kid at 19, alcohol, marital, etc.), I didn’t. He refused to get a job (didn’t want to “work for the man”), I went on to college. To him I “had it made” and he didn’t. After his divorce, he moved out of state and I said good riddance. Even when we talk, which is rare, he treats me like a little kid.