Really? I'd never heard that! Makes sense though.
It occurs to me that skiers could also benefit from wearing helmets and body armor to protect from spearing themselves on trees. Maybe they already do it and I'm just behind the times
I think I was about 30 when I saw a museum exhibit of a leather boot with steel toe piece that was socketed for a ball, mated with steel cable around the boot's heel. Circa the late 50's. I was totally outraged they'd make a museum exhibit of what I'd learned to ski on twenty years before ( would have been 9 years old in '59 ).
I also remember watching Olympic Gold Medalist ( I think ) Stein Ericksen skiing Heavenly Valley when it was still Stateline, Bijou, Al Tahoe, and the "Y" instead of South Lake Tahoe. And I actually watched a couple days of the Winter Olympics at Squaw Valley live, for real, and in person. ( Sorry Yvsa. )