The "I'll just be a minute;" or the "It can't/shouldn't happen here - this is a nice neighborhood!" mindset.
I see it far too often, especially up here in the mountains. Some of the commuting crowd that's turning more and more of the Bailey area into a long-range suburb are installing burglar alarms. The problem is, we rarely have more than two or three LEOs on duty during the day in an area of about four hundred square miles, and scanners are prevalent since the Hi-Meadow/Snaking/etc fires, and false alarms go out over the air. It's convenient for criminals. . .
You do what you can to help folks understand reality (dialing 911 is good, but you can have up to a half an hour wait, even if the deputy on-duty responds immediately). You have to get involved, meet your neighbors (better yet, go shooting with them), learn who is always home (the stay-at-home-crowd is aware that reporting/photographing suspicious vehicles/people is what sees Park County have a low crime rate) and so on.
Susan and I operate under the axiom, "If it isn't on you when you leave the house, it's secured."
For the rest of folks, all you can do is hope they wake up and smell the coffee, get involved in their immediate community, and apply the rationale that this requires layers, and thought, and consistent application.