All states have provisions that prohibit supplying alcohol to underage individuals. States punish these activities as criminal offenses, and anyone who knowingly supplies underage individuals with alcohol is committing a crime—except in a few limited circumstances provided by some state laws, such as in a home environment, or for medicinal purposes.
In Wisconsin, it is illegal to provide alcohol to individuals under the age of 21, with the state enforcing this prohibition through criminal penalties. This is in line with the National Minimum Drinking Age Act of 1984, which effectively set the minimum legal drinking age to 21 across the United States. However, Wisconsin law does allow for some exceptions to this rule. Under Wisconsin Statute 125.07(1), an underage person may be furnished alcohol if they are accompanied by a parent, guardian, or spouse who is of legal drinking age. Additionally, alcohol may be provided to minors for medicinal purposes, as long as it is done so in a manner consistent with state law. Despite these exceptions, supplying alcohol to minors outside of these specific circumstances can result in criminal charges, including fines and potential jail time.