Section 1728 P. the Term "street Trade," As Used in This Act, Shall

mean any business or occupation in which any street, alley, court, square or other public place is used for the sale, display or offering for sale of any articles, goods or merchandise. No boy under the age of twelve years, and no girl under the age of eighteen years, shall in any city of the first class distribute, sell or expose or offer for sale newspapers, magazines or periodicals in any street or public place.