I always wear my helpmet
... and I used to my work by bike every single day for well over 3 years. I never had an accident though, but I still wear my helmet whenever I go by bike and this is why: My Parents.
In short, they help me grow up, the fed me, they taught me, trained me, loved me .. from day one! How dare I risk killing my self, throwing away every penny and sweat the paid into me, by not wearing a damn helmet?! I see not a single reason how people can possible come up with an smart argument against a helmet.
I guess that is not you with your father...
True! Helmets are very helpful. If I was wearing one that day, I probably would of only received some scrapes and no concussion.