Bike helmets should be compulsory only if<p>- Having a five-point harness for every car is compulsory (alright, I&#x27;ll admit this is somewhat overkill and rhetorical)<p>- Cars are certified yearly as being road safe (not the case in all states in the US, but I think this <i>is</i> the case in the EU)<p>- Drunk driving has extremely severe penalties (10+ years in prison) beginning with the first offence.<p>The motorist is driving a much more dangerous vehicle capable of causing serious injuries to themselves and other parties. Let us all behave in a responsible manner.