Drunk driving is one of those violations where most people not all, but most people who commit it don't set out to drink and drive but alcohol by its very nature impairs judgment .. I've seen many times where someone will make a comment at the beginning of the night about getting a taxi if they get too drunk, and then when it's closing time argue that they are okay to drive. That's why people wake up with 2's when they thought they were going to bed with 8's. The only real way to combat drunk driving is education and stiff penalties . An education campaign that drives home the point if you wait to make a decision about arrangements for a ride home till after you start drinking you are going to make the wrong decision almost every time. You have to preplan if you are going to go out and drink . And you have to know if you get caught it will not be possible probation and some money out of your pocket . Even then we are still going to have traffic fatalities because of it.
The fact cops, doctors and nurses who should very well know the dangers of drunk driving do it should underscore how easy it is to make a bad decision when you have been drinking