A 8 year old girl should be the minimum train conductor: to experience her mother's work, and to be determined to do it.
Wu Ruiyan, Changsha, Hunan, is a 8 year old primary school student. Her family worked in the railway department, and she was determined to become "the four generation of iron". So she put on her modified uniform and set up an internship conductor.
[stream:tkbaz2px]https://video.pearvideo.com/mp4/short/20170502/cont-1073356-10421727-sd.mp4[/stream:tkbaz2px]
video address https://video.pearvideo.com/mp4/short/20170502/cont-1073356-10421727-sd.mp4