There are probably a lot of reasons people don't leave. I have to wonder if part of the problem is that, depsite all the talking heads on the tv, nothing looks wrong. It depends on the hurricane, of course, but even 12 hours before landfall, the weather still looks fine. A bit breezy, but not out of the oridinary. There aren't any "run or die" signals. By the time it looks bad enough to want to run, it's too late.