2of4 here. Two guys, two gals, I'm the oldest male and am entitled to all the rights and privileges pursuant. I guess I'm still waiting on that one.

We had a rough time as a group when Mom died and Dad's brain started to misbehave more than usual. I think we're better for having weathered that.
Older sister is the social one and the organizer of family stuff, which put her in conflict with little sister regarding my Dad's health issues and estate. They seem better of late, older sis is living her suburban dream: soccer, gymnastics, and cocktails with the neighbors. She has Dad in her home about half the time, keeping his meds regulated and running him to doctor appointments. It can a burden, but she does embrace her role. If / when Dad gets worse we're going to have to make sure she lets go.
Little sis is an intensely devout Catholic, but hasn't let it interfere with our relationship. At home Mom, great kids, country dweller, and highly disorganized. Her perceptions are sometimes impacted by her emotion based thought processes, which kind of fits her spiritual side. She sometimes leaks anger over things I thought were over but she has been using as some kind of spiritual burden.
Little brother was a bit of a world traveler, much more intellectual than the rest of us, a great smoozer, he can match persona to situation better than anyone I know. He is teaching English but has a degree in law. He contracted Lyme's disease and is suffering pretty badly. Married/ no kids. Funny SOB.