Helmets, and why they are amazing

So spring has sprung, and people are thinking "hey i could get out my bike!" which is awesome. i just wish at the same time they were thinking "hey now where is my helmet?" On my bike up to work the other day i passed a number of cyclists, only one other person was wearing a helmet. why?
while it's not manditory to wear a bike helmet if you're an adult in canada, and some "interesting" debate around if it were made manditory is out there. for example such gems as "making helmets manditory will decrease bike ridership and overall decrease the health benefits of biking blah de blah"   *cough* bullsh!t. if someone gets hit by a car and gets a brain injury how is that a health benefit? or "if cyclists start wearing helmets they'll be less cautious on the road and get into MORE accidents" seriously! seriously?  or even this "i could get hit by a car while walking, should i be wearing a helmet then too? how about we wear helmets all the time!"  or this, " it's a violation of my freedoms to make me wear a bike helmet" oh i wish i was making this up.
so why arn't people wearing helmets? they don't cost alot, 20 bucks gets you an incredibally functional (and somewaht stylish) helmet, and that's way less than it would cost to mamage a brain injury. or is people don't want to take the time (5 seconds) to put a hemet on before they get on thier bike, "i'm sooooo buzy!".  or maybe vanity? "it'll mess up my hair", " i'll look like a dweeb", "i love how the wind feels blowing through my louschous locks of golden hair". this is crap y'all. most stats i could find stated that over 90% of the cyclists killed in collisions with cars were not wearing helmets. ya gatta face it folks. in the bicycle versus car game on the road, the bicycle rarely wins.
 ya see your head carries around this really amazing thing in your body, your brain. the brain does all sorts of cool things for us but is generally a pretty fragile thing  (from someone who has had a number of concussions). i'd say if you have the chance to protect it, even in a small way, by wearing a helmet, please do.  brains are way cooler than haircuts. and brain injuries are not a whole lot of fun. so please protect your melon.