When I see someone riding without a helmet I think to myself "what a dope" what could the reason be to not wear one? Next time your out riding around pick up a nice sized rock or a big ol' tree branch and rub it vigorously on your face and head, maybe even a few light whacks on top of your head. Now imagine that same feeling x's ten. If you're worried about not looking cool, think about how cool you'll look playin with a busy box while someone you love is changing your diaper..... helmets don't really look cool, or feel cool. But for me, just having one on and having just that much more protection, other than just my stupid hard head, makes me a safer and better rider.
The choice is yours.
Welcome.