In the next dream, I had a great big garden (the size of a small field) with a wire fence around it. But nothing particularly interesting was growing in it, I think it was just full of weeds. A herd of wild horses was inside, about 20 of them, in all different sizes. Most were light brown and white, but there were a couple cream-colored ones. I thought about shooing them out of my garden but decided to let them stay, since I like horses and the garden was full of weeds anyway. As I stood watching them, I realized there was some sort of tournament (jousting?) going on nearby. There were 4 knights, and I guess they were special somehow, but I only vaguely remember seeing them as cartoon characters.
Then I stood outside what was apparently my house, only it was next to a bigger building (maybe a modern-ish brick castle), and it was connected to other houses with a network of hallways. I guess there was an SCA meeting on my lawn, so I ran back inside to put on some garb. As I ran back to my door, I realized I was wearing an elaborately-decorated blue, green, and gold gown of some sort. It was pretty neat, actually, though I tend to go for the more androgynous tunic-and-pants garb. (Ah, how I love pants. Especially in the heat of August, when I really don't want to feel my sweaty legs brushing against each other.) I went into the hallway towards my house, and I kept walking past people I recognized (I think the Jonas brothers were there at some point). When I got to my door, I saw that it was open, wondered how long it had been that way, and then heard sirens (I probably did hear them in my sleep). I started to panic and realized I had to hide, although I had no idea why the police would be after me. (Maybe I killed Rose?)
Age doesn't really have much to do with it. Physically, you're an adult once you finish puberty. Mentally, socially, emotionally, etc., it all depends.
I'll be 26 in 3 months (gahhhhhh), and I don't consider myself an adult. I'm basically a cross between a little girl, teenage boy, and crazy old lady. There's no middle ground.