We are .05 in New Zealand too.
But it's the rotten drunk drivers who cause the damage. And it's not just drunken young men. More than often it's a middle age or elderly woman who has downed half a bottle of gin who mows down a group of cyclists. Or the smart business woman who has downed a bottle of pinot gris with lunch.
My dad was NZ's second highest alcohol level while driving conviction. So I've seen it all