I think part of this is that students are conditioned to ignore lecture because of the sheer amount of bad lectures they've had. I've had quite a few terrible l

I think part of this is that students are conditioned to ignore lecture because of the sheer amount of bad lectures they've had. I've had quite a few terrible lecturers where the professor had no clue how to teach, and was simply reading off the book or using the publisher-supplied slides that came with the book (which are often terrible). When this happens often enough, students internalize that lecture is a waste of time and they can learn better themselves. Some won't even show up, others will show up purely to get attendance credit but do something else. For people to listen, lecture needs to provide something that simply reading a book doesn't.