Bell helmets years ago had an ad that said "if you have a $10 head, wear a $10 helmet." So, if you have a head worth nothing, wear no helmet. I've ridden all my life, always with a helmet, and I have had two accidents where a helmet saved me. Bike dealer near me was bringing a new bike from the back of his dealership up to the front. He had a low speed crash and killed himself on his own property. He always wore a helmet, except then, and it cost him his life.