They just mentioned on fox that this kid was under 10. He was playing with the matches in his back yard when the wind caught it.
10 is old enough to know better. Years ago a friend of mine caught her son of about that age, playing with matches and she took him to the fire station. They had a talk with him and suggested that she take him through the burn unit at the hospital. She did and he never played with matches again. He learned a lot from that experience.