I don't necessarily disagree with that. Certainly people should have strategy and have enough understanding of the dangers that exist out there. However, sometimes danger can find you, even though you are trying to avoid it. One still needs to nurture that ability we all have to sense the danger. Everyone has it, it is there because it is natural. It's purpose is to keep us safe.
Our eyes can deceive us and regularly does. That is why folks often say.... He just came out of nowhere.... I would have never expected that... And the best of them.... "it was a random attack....".
When it comes down to it, the awareness I speak of IS the last line of defense for a person. Without that, no matter how much planning and strategy, avoiding the danger, it is still a roll of the dice.