Yeah - I'm with those that don't get it, but don't get upset about it either.
That's not quite right, it upsets me a *little* when I see someone decked out like a lean+mean French racer dude on a hotshot fast bike winging down a busy road without a helmet, for the same reason that it upsets me a little when obviously good rock climbers lead pitches without a helmet, because it gives the impression that "kids, if you're good enough, you don't need a helmet".
On the other hand, it is their head and their life they're risking, and I can't force people to be good examples. Nor do I feel that people should be good examples at all times.
But the average joes out trying what it's like to ride to work or whatever, riding slowly and staying way out of traffic - I don't worry too much about the lack of a helmet. If I can I try to mention it as a friendly tip, and tell them about the times it's saved me from head injury, and about the time not wearing one gave my dh a bad concussion and 8 stitches to his head.
But I do wear a seatbelt. Never know when some other idjit is going to rear-end you, people do the strangest things in cars.
Winter riding is much less about badassery and much more about bundle-uppery. - malkin
1995 Kona Cinder Cone commuterFrankenbike/Selle Italia SLR Lady Gel Flow
2008 white Nakamura Summit Custom mtb/Terry Falcon X
2000 Schwinn Fastback Comp road bike/Specialized Jett