Pure fun

Columbia road next to "La casa del pueblo". About 6:30 PM. I'm walking coming back from a friend's house. An apartment building with a large garden iron door. A little girl is hanging on the door. She is going back and forth as her older sister (her mother?) pushes and pulls to open and close the door.
The little girl is shrieking with pleasure. Back and forth on a door. Pure and simple fun.