I think families who have lost family members or friends to drunk drivers would disagree with you on the "low" level blood alcohol.
The higher you raise it, the more people will push the limit.
Other countries have lower levels such as Bio pointed out about Austrailia.
"When I hear athletes call themselves warriors, it does bother me a little bit. When I think of a warrior, I think of the Marines I've led in combat, those Marines that sacrificed so much...no showers, little food, no contact with their family, all for their love for their brother Marine and for their love for their country. That's a warrior, willing to lay his life on the line. I've had Marines that have laid their lives on the line for the man next to him, and for their family and country. That's a warrior. The guy who goes into some athletic contest who has no war experience, in my eyes, really has no right to call himself that. That's a coveted thing to call someone, and that's what I call my Marines. Those are warriors." - Brian Stann