You may not believe it, but there are still people out there that will ride a motorcycle and not wear a helmet. Sounds pretty crazy, but it is true. Since I live in a state that requires riders to wear helmets, I don’t see it everyday. But I know that in a few states there are no helmet laws (Illinois, Iowa, and New Hampshire) and there are people there that don’t wear a helmet.
In fact, I spent a good amount of time in New Hampshire in my youth and I particularly remember seeing people riding motorcycles without helmets. I never really gave it much thought. I grew up on the east coast of the United States and a bit in Canada. There was a lot of recreational and professional activities where people used to not wear helmets like they do now. Hockey and skiing come to mind the most prominently.
I remember when the NHL implemented their policy that required players to wear hockey helmets when playing. It took a bit of time before it was universal throughout the league, but for a while a number of the old guard refused to wear helmets during games. They were used to not playing with a helmet and continued to do so, even at the risk of serious injury or death.
When it comes to motorcycle riding there are still plenty of riders that refuse to wear helmets, even in states where they are required. Some do it just for fun, though. I have seen riders in states like New Hampshire that take their helmets off at the border. Once they are in New Hampshire, they take their helmets off and ride without it.
Again, this is at the risk of serious injury or death. In the event of an accident, a helmet strapped to your bike or over your arm is not going to protect your head from impact. There is just too much at stake to not wear your helmet, even when it is not required. This video illustrates that message perfectly.