Do you hold a consistent mental model of the world? For many of us (though less likely for the readers of this blog), the answer is “no.” That’s troubling. It’s hard to be correct, if your world-view doesn’t even type check.  People are entitled to opinions. But hold them in a state of contradiction, and they’re wrong.
Though it’s easy enough to apply consistency checks, inconsistent world-views abound. I suspect it’s because people never learn to be consistent. Education under-represents logic and reason in the classroom. High school math class is the closest many people come to an education in rationality, and math is “just too abstract.”