Every time gas prices spike, the same questions get asked: Why are gas prices so high? Who’s to blame? What will bring them down? These aren’t terrible questions, and they’re logical in a country where the majority of people are car owners. But the fact that we keep having these questions, decade after decade, suggests they’re also insufficient. A better question may be: Why does gas price volatility have the power to cause so much pain? The answer, of course, is parked in America’s driveways. What this tells us is when it comes to costs, gas isn’t the crux of...