Down in SC, there's no helmet law. And I see these fat tattooed rednecks riding their loud Harley wearing just a little black beanie or no helmet at all. and some t-shirt and shorts, and some flip-flops or something. I wouldn't be caught on a dadgum motorcycle in anything less that a full body suit made of 1" iron, head to foot. Better yet, I wouldn't be caught on any motorcycle at all. I don't climb ladders. And I look both ways about 4 times each before walking across the street.
While at university in the 1980s, I worked summers as a Canada Customs agent - sometimes referred to as a border guard.
British Columbia has mandated DOT approved motorcycle helmuts for a long time, and certainly did so at that time, but Washington State did not.
As a result, we turned around any motorcycle rider who did not have an approved helmet to put on as soon as they crossed the border into Canada. Some rode up without any helmet on, but brought them along with them, to wear while here.
In any event, one of the more experienced officers had a standard greeting for anyone who showed up at the border riding a motorcycle, but not wearing either any helmet, or a helmet without a face shield:
"How do the bugs taste today?"