John C,
Let's not be so hard on newer forum members. A lot of people (including children) like loop running and this new schematic may offer more "excitement" and running possibilities (multiple trains, crossings, and potential crashes) than currently exists.
COLTM, I would advise that another feature of model trains that children really like is action accessories (coal operations, culvert operations, crossing gates, rocket launchers etc.). In addition, the ability to load and unload action figures into gondolas and coal cars adds to their play time fun. Scenic features like mountains in corners, stations, and roads for toy cars improve their attitude toward running trains.
Show them some different options from the web and see what excites them. Then see if you can keep that excitement going.
Chuck
