Yes, it does. When you're younger, like some people have already said, the older you are, the more experienced you are, and you are more careful. The younger you are, you're more curious and tend to try out new things. Now, when you get to like.. teen ages, you're bound to try and fit in with everyone, or else you might not really fit in with the crowd and .. sometimes, you can be picked on):
It's also the attitude, to either blend with the crowd or just be who you are. Many teenagers like to keep up with trends (especially girls ^^ ) cause.. fashion is either "in", and everyone does that or "out".