§ 112.34  MINORS ON PREMISES.
   (A)   No person under the age of 18 years shall be employed in any rooms constituting the place in which intoxicating liquors or 3.2 percent malt liquor are sold at retail on sale, except that persons under the age of 18 may be employed as musicians or to perform the duties of a bus person or dishwashing services in places defined as a restaurant, hotel, motel or other multi-purpose building serving food in rooms in which intoxicating liquors or 3.2 percent malt liquor are sold at retail on sale.
   (B)   No person under the age of 21 years may enter a licensed establishment except to work, consume meals on premises that qualify as a restaurant, or attend social functions that are held in a portion of the premises where liquor is not sold.
Penalty, see § 112.99