Do you ever think maybe it's not your expert driving skills that are the problem? What about that idiot that's driving while smoking a cigarette with the windows up? YOU don't have to be the cause of the accident for your child to be seriously injured. My daughter just turned 4 and is only 3'2" (38") tall. She's still in a 5-point Britax seat that goes up to 75lbs. I would never consider taking her out of this seat until she's at least 3'6" (40") tall. (At which time she would go into a booster) But there are completely clueless people out there who put a child that small in a car WITHOUT a booster seat. This is why laws like this need to be passed. There are innocent kids who have ignorant, naive and "it won't happen to us" parents!