Oh no, I said in a post that 18 year olds aren't really mature. I agree with you that it takes some years for adults in America to shape into what is expected of adults. It took me until somewhere in my mid-twenties to start feeling like an actual adult, just like you, and in between the ages of 25 and 29 I've seen myself grow and develop even more and become even more mature. I want to accumulate more and more wisdom as I get older. Even when I was 20 and 21, well, I've grown and developed a good amount since then.
I am vague on the details of the 18 year old woman's potential punishment. I wish they'd go easier on her, but as we know, the law makes 18 the age where someone can then be eligible for punishments to the fullest extent. Nothing we can really do about that. I hope the best for the 18 year. I don't want them to be too hard on her. And you know, maybe her and the 14 year old were pretty happy together. : -\