Wearing a helmet saved my life at least twice, and I have the mangled helmets for souvenirs. The local medicos around here call all bikes, including motorcycles----Donor Cycles. So I always wear a helmet, even around town. That being said, however, one of my best friends that I ride with never wears a helmet, and despite my best efforts, won't wear one. Oh Well. People almost never listen to unsolicited advice, and some react badly to it, so I try not to give my opinion on something unless asked-because then I know they are listening and wanting an opinion on whatever the topic is.