I have been wondering for some time if situational awareness can be taught. A Google search suggests that Mental health therapists are making an effort, but mostly in the context of teaching self-defense strategies. In other words, from the perspective of victims or potential victims of assault. So, the reference image for the instruction being of a car wreck is entirely appropriate. Car wrecks are perhaps the most prevalent evidence of a general lack of situational awareness.
My personal favorite evidence of its absence is the memory of a contingent of cops and first responders to some downed power lines chatting with each other and apparently oblivious of the public they were to redirect. Which has left me with the question whether personal interaction is a substitute for attention to the environment or a default.