I think people should be free to do what they want. I only wish that parents would think about their children or the other people who love them before their hair....don't people realize that with freedom comes responsibility?
I have had 4 falls since I started riding 3 years ago, and I have hit my head on the pavement 4 times...even the slow motion fall I had in a friend's driveway could have resulted in a concussion...thank God for the guy who invented the bike helmet! I'll take helmet hair any day over a head injury!