Sorry about your sister, I hope she recovers quickly.

I have been riding for 35 years and have about 300-400,000 miles under my belt.
I have crashed twice, one on the road, one on the race track. Both times were with a helmet and the track one, of course, full race suit.
I'm not anti-helmet, I am anti helmet LAW.
I CHOOSE when I wear a helmet or not. I am an adult and am more than able to make my own choices, good or bad.
Just glad that I live in a state that agrees with me.

Be careful when wishing away the freedoms of others, they may come after yours next!