Bridgeman has been driving his entire adult life , though he says he 's always been aware of some edginess among family members when he gets behind the wheel .
尽管布里奇曼说当他转方向盘时在家人面前表现的有些急躁，但他一生都有在开车。
But he and his partners contend that crowdrise , with its mix of edginess , silliness and good-humored competition , can change that habit , especially for young people .
