Note that fire can and does compromise concrete structures anyways, and more crucially, concrete structures tend to be significantly more expensive to build. A

Note that fire can and does compromise concrete structures anyways, and more crucially, concrete structures tend to be significantly more expensive to build. A standard wood frame house is insanely cheap to build the structure of, and unsurprisingly, consumers tend to want to build a lot very cheaply. Finally, there are only two types of concrete: Concrete that has cracked, and concrete that hasn't cracked yet.