Colibri,
I don't think anyone is suggesting that helmets be mandatory, nor do I for one second think there is any "image" or fashion element as you seem to think. That comment I found rather amusing. Having worn the military helmet for many years, I totally agree that it was a heavy and uncomfortable beast, especially when flying with NVG's for long periods. The difference however with new modern helmets is huge. Much lighter and more comfortable, and the key is that they offer a huge benefit for noise reduction. I personally do not wear one yet, as I want to also see all the options, and personally if a really good ANR was available, then perhaps that would be the answer, but right now the helmets seem to offer the best overall protection. Even with a good ANR headset, when you have to wear sunglasses you lose a lot of the protection.