Are you a baby?

[PertPerth]

I'm the youngest (in the family I grew up with. I'm adopted and didn't meet my biological family until I was in my 20's). I'm a very conservative, traditional, reliable, go to bed early and work hard kind of girl. My brother is 5 years older, still runs to Mum and Dad when he has financial or romantic troubles (phones in the middle of the night crying). He stays up all night, popping pills and partying with girls 1/2 his age.

The strange thing is, I have all the traits of an only child.