Geez, i don't know, haha. Just through experience, I hate guys in my age. I could honestly tell you why I love older guys, but i still haven't found a good reason yet. Maturity? That can't be the only reason...i-is that weird? Or dangerous?
When i was in high school, i was automatically dragged with people around with guys. & i did have a few guy friends, but they were so immature. Then i figured, not all guys this age are like this. But it convinced me well enough for 18 years.