I can read novels I'm interested in. I read a lot of sci-fi and fantasy, but DNF a LOT of books that I cannot get into. My wife cannot not finish a book. Doesn't matter how bad it is, if she starts it she will eventually make her way through the book. She may put it down for a while and read something else in between but she persists. Regardless, we both average a little over a book a week. The game changer for me was shifting from reading at night (often well into the morning) to switching to audiobooks that I can listen to while hauling kids around, working in the garage or doing chores. Now I can DNF audiobooks because the narrator pronounces a word weird.