Helmets are mandatory with our family, whether we are snowboarding, biking or riding dirt bikes (a helmet is just one of the many pieces of gear we wear while riding dirt bikes).
I have seen too many out of control people on the slopes to not strap on a helmet. It is better than nothing.
It is not that wearing a helmet is either right or wrong, but a matter of choice & NOT being told to do so by some nannystate legal-winnie!
I make my kids wear a helmet when we go outside and do things like ride our 3 wheelers or ride a bike ect..., but I do not want any legal-winnie telling me to do so!