Except as provided in Section 9.36.020, it is unlawful for any person to sell, give or otherwise supply intoxicating liquor to any person under the age of twenty-one years, or to any person apparently under the influence of liquor, or to any interdicted person (habitual drunkard), in the city; or to permit any such person to consume intoxicating liquor on his premises or on any premises under his control in the city.