Wisconsin is one of many states that have special exceptions for minors when it comes to alcohol. However, it's not as cut and dry (or wet) as you think.
For many, October is one of the best months of the year, with the peak of fall events and colors, to Halloween, October is a fun month, and many enjoy it completely sober.
Minnesotans have been known to raise a pint or two, but one city here in the Gopher State apparently does it way more than any other city in the United States