Only child. And I have quite a bit to say about this.
I think that family and faith are the two things that impact a person the most. My mom said she always wanted to grow up and have lots of kids, but she and my father separated after I was born, and she... how do I explain this... doesn't "believe" in being married more than once. She says it does not conform with her morals and values. Fine, whatever.
Anyway, I don't think I'd really want to be the eldest sibling anyway. I've always, always,
always wanted older siblings. When I was younger, my mom suggested that she adopt another kid, but insisted it would have to be a baby or a toddler because older kids have "backgrounds". I doubt she was even serious in the first place, but honestly it would be nice to have a sibling, older or younger. I feel like I missed out on a whole lot not having siblings. A teacher I had once told us that nobody knows you your entire life except for your brothers and sisters. I think it's true. As long as you and your brother or sister don't have like, a fifteen year age difference, and most don't, chances are they're going to know you and you're going to know them from one end to the other.
I don't know how to write families. I can write friendship, and I daresay, realistic relationships. Maybe that comes from not having have father or siblings, and a mom that worked really hard to support me growing up, but as a result was not around very much. I'm not trying to turn this into a I'm-a-teenager-my-life-sucks moment, but I think one of my biggest regrets is not having siblings. Which is funny because that's not something that's really in my control. I wonder what kind of sibling I would be. I'd like to think we'd be very close, especially if it was a brother because I've always got on better with boys than girls. But a sister would be great too. I'm never going to have nieces and nephews.
It sounds kind of silly, because there's some things about kids that I really don't like. They're selfish and unappreciative in my experience. But I've always liked communicating with them. Since there's nobody close to my age in my family, I always end up hanging out with my uncles whenever we go to family parties, or the little crowd of six-year-olds who aren't quite related to us, but still think that I'm their aunt. In fact, my mom has told me that she's surprised I have any friends my age. If it weren't for school, I don't think I'd have any at all. People my age don't interest me too much, because I always feel like we're thinking the same things, and that we're capable of the same amount of thought. That's not to say I don't have friends my own age, I do, and they're awesome, but I like meeting people older than me or younger than me, because I never feel like we're at the same level.
Also, all of my good friends have siblings. All of them. It's just not fair.