Why ? You are not noticeably inebriated . Provably false , they ' ve done studies and your driving ability is impaired from the first drink . People are also very bad at knowing how drunk they are oh I just had a couple , and you get people over whatever limit you have all the time . Much easier to just have zero as the limit and then you always know . I ' m glad I live in a country without such strict standards as you enforce . I hope you do not talk on the the phone , text , check your email , or do your hairmake up . All those things are illegal to do while driving , at least it is here . I have been hospitalized by someone who was texting while driving . These things are all much more dangerous than driving with a BAC of . 02 . And texting while driving is illegal here , so I don ' t see the point . I suppose your view is much more manageable in Europe because public transportation is actually much more viable . Might be true for the cities , but it sure as hell ain ' t in the rural areas . I ' m from northern Norway , I can count the amount of buses that go through my hometown during a day on one hand . Typically the problem of transportation is solved by taxis or designated drivers it ' s actually quite common for everyone to put in a bit of a money and pay some young person to drive them around as needed all night .