Like, intellectually they know that it costs less to live in Beaverton Michigan than it costs to live in Palo Alto. But the magnitude of that difference, and how that scales your income needs, they've never thought to do the math. It doesn't scale proportionally, and that's counterintuitive.
This isn't a dig against anyone, and exceptions abound. But when I told my foreign-born SV-lifer colleagues how much my rent was in Wisconsin, you'd have thought I was the one from a foreign country!