Originally Posted by
Tiglath
There is plenty of concrete hard evidence that arranging for a cushioned shield to take the brunt of any blow to the head is a very good idea.
Objections to helmets boil down to disputing this very concept, sometimes unconsciously.
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Not really. If I look at the odds of my having a potentially severe accident on a particular ride, and multiply that by the probability that I'll mess up or by chance hit something with my head, the probability of a helmet being useful may be too low to warrant its use.