Same here. We're all well aware that I could die regardless, but wearing a helmet makes them worry a little less. Maybe we're just forestalling the inevitable pain and sadness from when I die from spleen injuries or whatever, but at least it makes them feel better for now.

I don't think that anyone thinks that helmets will protect you from every possible injury, but I've yet to see anything that makes me believe that you'd be better off NOT wearing one. I look dorky enough already--a helmet can't do too much more damage to my image--but on the off chance that it might save me some pain/hassle at some point, it's worth it.