Our state is known for having a different way of doing things, legislatively, than nearby states, like Minnesota, Illinois and Michigan. One of those things is the way that the first time offense of OWI is categorized and handled. If charged with OWI for the first time, it might not be prosecuted as a crime.
Everybody knows about drunk driving and intoxicated driving. This includes the potential impacts it can have and the fact that it's illegal. However, many charged with OWI didn't realize they were over the legal limit, or that their actions would be considered breaking the law. However, ignorance is not a valid defense to OWI.