Yes. I always wear a helmet. It's amazing how people get so worked up over this issue. If you don't want to wear a helmet, don't. If you want to wear a helmet, wear one. I figure every little bit helps. In my area it seems like vast majority of people wear helmets.
It's amazing how both sides are completely over-blowing and twisting the facts to make their side seem right- it's like watching a political debate

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But yea, if I'm going head-first into something why not have a little protection?