Not wearing a seatbelt is, in my opinion, selfish and irresponsible. Bodies become projectiles when unrestrained. You can be thrown into your front seat passenger, ejected completely from the vehicle, or tossed over the backseat into your kids. Watch crash test videos and look at what simulated 40mph crashes do to the dummies. Humans are generally ineffective at controling their bodies when they encounter those kinds of forces.
Then I guess its just as selfish and irresposnible to your passengers and other drivers on the road when you put a bag of groceries in your backseat, or a purse on your front seat, or anything in the passenger area of your car without restraining it. How many of you do that
