'Wish I'd Seen-A-Lot'
Freud and Jung would argue that the feelings of anxiety and anger you are experiencing over these issues are cause by repressed emotions, caused by a deep rooted desire towards this particular age group, and the power play thing. It unsettles you that others can take advantage of this and you (any where near the mid-life crisis??) cannot. This was particularly reinforced by your very robust statement denying your interest.
I've rattled someones cage have I? To be honest I can think of nothing worse. 18..... no thanks. Like dipping my wick in my mates daughter.
There are definitly things worse than this surely.
Now lay back on the couch... Take a deep breath... and tell us about your childhood, and perhaps your teachers