There are several theories that have caught my attention, one of which is, that college age students do not have the time to pick up a novel and read for pleasure. Much of their time is spent in the classroom, doing homework, working, and of course, less we forget, the all important social life.
But I was also intrigued to discover there might be other reasons, as well.
It took several years to recognize the need for a Young Adult genre, and now, slowly, it's being discovered that there might be a need for a college age genre, as well, especially with this new generation's ideas and expectations. The industry, in time, will catch up. But for now, the 18-25 fiction genre is still included in the Adult Sections of the library and bookstores.
It will be exciting, as a writer, to watch this new genre explode on the scene. Like everything else this up and coming generation takes on, I feel, the "New Adult" genre will come to fruition with gusto.