They have a helmet law. If you are 21 or under you have to wear a helmet. If you are over 21, you do not have to wear a helmet only if you are carrying an insurance policy that coverages a minimum of $10,000 in medical benefits that covers injuries occurring while operating or riding a motorcycle. So not knowing the riders ages and coverages they could be found liable for their own medical bills even if the guy in the cage was at fault.