or riding on any road with car drivers.
Or walking on a road with car drivers. Or driving on a road with car drivers. Basically any time you find yourself near a car driver you should be wearing a helmet.
I suspect the anti helmet brigade would have also railed against compulsory seat belts in the 70s.
Not really.
Those of us in the ‘anti-helmet brigade*’ generally like to look at things like data. Helmet use doesn’t really show a statistically significant overall reduction in harm (once you take everything into account which is actually quite tricky).
Seatbelts don’t really have the same amount of noise in the data. People don’t drive less because they are forced to wear a seatbelt and other drivers show no signs of taking more risks around other drivers they see as being strapped in.
Helmet compulsion definitely reduces the number of people riding bikes. Helmet promotion may even reduce the number of people riding bikes (some data but not conclusive). No matter which statistics you use, society is better off if more people are riding bikes.
The ‘pro-helmet brigade’ are like religious fundamentalists. They have their magic polystyrene talisman of protection and insist that everyone else subscribe to their beliefs.
*soon to be designated a terrorist group.