As one who does not drink alcoholic beverages, I truly resent having to pay for an added item on my car, that is really only for those that lack self discipline.
I have read articles that claim drunk driving is nowhere near a problem in most European countries, as it is here in North America. Apparently the penalties for impaired driving is very severe. While it is not socially acceptable here in the USA, to drive impaired, in Europe, society as a whole looks upon impaired driving differently.
In some of the Scandinavian countries, if you drove to a tavern, it shows intent to drive impaired. Your car will be impounded, you lose your license, and are jailed. People use public transportation or walk.