The degree of importance many teens will place on themselves and their petty, illusory concerns is quite astounding. Thus, I have no patience for any literature dealing with them and therefore stay far, far away from them.
Lucky you - as our adult section starts at 14+ - so, it's part of our clientel, and as I'm in charge of novels => no choice on my behalf. But there's still a section I like to read => youth fantasy books. They have no adolescent probs as the main goal (and not this predictable heroic combat stuff or love, yarch.) This bores me a lot in adult novels, and I develop no patience then, but simply skim through the first 20-30, the middle 20 and the last 20-30 pages. Mostly sufficient to write a summary. If a novel survives this procedure, then I read the whole.