Marcus Aurelius wrote:I’ve done a fair bit of impromptu helmet during accident testing over the years. They’ve certainly stopped me from sustaining serious head injuries. Helmet manufacturers want to sell helmets, and don’t want their profit margins eroded by costly studies, when there are standard tests, which will do, to get the minimum necessary regulatory ‘ticks in boxes’ to enable them to be able to sell at a profit. As far as I know, no one has commissioned any robust scientific studies into the efficacy of cycle helmets. It would be a difficult thing to do, as people involved in accidents where a helmet would have helped, but didn’t wear a helmet, tend to be dead, and dead people don’t talk much.
I am so pleased that you didn't mention cyclists as all of this post would apply to pedestrians, car drivers and passengers