Ha Irish - wait until you DO have an accident, you might have a different opinion. These things aren't always within our control. Someone else could hit you with their car, for instance!
Lisa - you forgot the winter sports! Ice skating, sledding and skiing are other areas where I spent my childhood being crazy and reckless and loving every minute of it. Now kids are supposed to wear helmets to do all of these things! My boys are heading down to our lake as I type to try out the ice and I am so tempted to make them wear their bike helmets

But, to be honest, I'm a lot more concerned that they will fall in than fall down!