There are not a whole lot of young people on board.

well, just to get it cleared up now, it's not me. My only siblings are 12 and 3, and you think I'm young. Plus would I be confused about the name "satin" if I knew about it already? You probably weren't inferring that it's me, but I just thought I'd say something.

I'm not sure if it's what you were implying, bel, but maybe satin's use of the word "sibling" means that the said person has not/refuses to reveal his/her gender.