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Checking out the exits is important. Also, the individual must train himself/herself to think independently, and should a threat manifest itself, leave immediately instead of passively watching the trouble unfold. I.e., when a fire breaks out in a crowded concert hall, people have been recorded to watch the fire spreading, instead of immediately exiting. Seconds in a case like this is important.
Situational awareness is impossible when you are staring at an iPhone all the time.
Part of the problem..
When I was a kid, there were scarey movies where I couldn’t believe people could be that stupid. I found out people really are that stupid.