No owner or keeper of a billiard parlor or owner or keeper of a billiard table at any other public place shall permit a minor under the age of eighteen years to play billiards or pool, or be and remain in such parlor or public place. Provided, a minor under eighteen years of age, when accompanied by either parent or his legal guardian, may be permitted to play both billiards and pool, or be and remain in such parlor or public place. And, provided further, that an adult person, who is in charge of a group of minor children under the age of eighteen years, may bring such group into a billiard or pool parlor for the purpose of permitting them to play both billiards and pool and such group may be permitted to play both billiards and pool or be in and remain in such parlor or public place so long as they remain under the supervision and control of such adult person.