Let me start by saying I am pro-choice when it comes to helmet use and I always wear one cycling and 99% of the time while skiing. But I wouldn't even consider using a helmet for soccer and basketball even though there are more traumatic brain injuries in the USA per year from these sports than from all winter sports combined (including snowmobiling). In golf the number of traumatic brain injuries per year is only half that of winter sports yet you would be considered seriously paranoid to wear a helmet while golfing.
As for driving there are roughly 18 times more hospital admissions per year in the USA for traumatic brain injury from a motor vehicle crash than winter sports yet I have never heard anyone advocating helmet use while driving.
My question is (even when you factor for the participation rates) whether skiing and other "extreme" sports are being picked on disproportionately compared to other sports or activities when it comes to promoting helmet use? And will activities like driving your car be the next frontier in promoting helmet use - statistically it serves to benefit more people than helmet use while skiing.
Source data (ignore the ambulance chasing lawyer stuff on the site)