It is unlawful for any person under the age of eighteen (18) years to be in or upon any premises for which an adult entertainment premises license is required. Only the following types of identification will be accepted as proof of age: A motor vehicle operator's license issued by any state, bearing the applicant's photograph and date of birth; A state-issued identification card bearing the applicant's photograph and date of birth; An official passport issued by the United States of America; An immigration card issued by the United States of America; or Any other picture identification bearing the applicant's photograph and date of birth by a governmental agency. It is unlawful for any owner, operator, manager, or other person in charge of a premises for which an adult entertainment premises license is required, to knowingly permit or allow any person under the age of eighteen (18) years to be in or upon such premises.