It shall be unlawful for any person, firm or corporation operating or maintaining a place of business where non-intoxicating beverages are sold for consumption on the premises, or for any person in charge thereof, to:
1. Sell, offer for sale, give away, procure for or otherwise dispense to, any person under 21 years of age, any non-intoxicating beverage;
2. Permit any person under 21 years of age, to loiter or remain in or around such place of business, except where such business is an eating place where the service of such beverages is incidental to the main business of serving food;
3. Employ any person under 21 years of age to work in such a place, except where said place is an eating place where the service of such beverages is incidental to the main business of serving food;
4. Sell, deliver or knowingly furnish non-intoxicating beverages to an intoxicated person or to any person who has been legally adjudged insane or mentally deficient;
5. Permit therein gambling, betting or operation of a lottery;
6. Permit the sale, furnishing or drinking of intoxicating liquor;
7. Permit disorderly conduct, loud or disturbing language or any other violation of state law or of the code of ordinances of the city; or
8. Permit an intoxicated person to remain in or around a place of business where non-intoxicating beverages are dispensed.