I'm an only child. Not only that, but both of my parents are only children, meaning I have no aunts, uncles, or cousins. My grandparents are all only children, except for my mother's father, but no one else except him married, so I really don't have any extended family at all. Add to the mix that my parents have been divorced since I was two, and I've only ever known my mom, my family is small.
Are families that small that rare? How many of you are in similar situations? I don't understand the sibling dynamic at all, as I have no frame of reference; same with big family gatherings. It's weird.