biznatch

My gramps was a rally racer and also a car mechanic(on big competitions such as 24 Heures Du Mans and Formula 1 races). Needless to say, his reflexes, until age 65-70 were lightning fast (if you've seen a rally race from the inside of a cockpit, you know what I mean).
However, it didn't prevent him from getting in an accident while driving "normally" one day, partly because of bad weather conditions (and he was focused and cautious) when he was in his forties. He said he was lucky to not die that day; I think so, too, because most accidents depend on the unpredictable. I'm not gonna say chaos theory, but its the smallest things that often lead to horrible consequences.
I agree with Bill o rights: Nobody should assume anything from events that we're not sure about. For all we know, the girl could've put her hands on the mom's eyes... (My younger sister did that once to my dad as a game because she saw it in a stupid kid's movie and wasn't old enough to know better.) The point is, only God knows exactly what made the car go off road.
And experience may lessen the probability of an accident, but no matter what, it remains an <b>accident</b>.
Of course, feel sympathy, because it could happen to you (or anyone around you) tomorrow. But more importantly, develop awareness and learn from tragedies like this.