It is used for accuracy, adding line and distance, changing direction of your cast and drying out a dry fly. To practice, work with 20-25 feet of line out with the line straight and rod tip low. Lift the rod and power the line to the rear. After making about three false casts in each direction, present your yarn fly to the front and allow it to fall. Pull off a longer length of line and see if you can cast it.
Many young people are just as good at casting as adults.
Provide them with the proper equipment, instruction and encouragement and our youngsters are prepared for the stream. When you see the beaming smile of a child who has landed her first fish on a fly, you will know that all of your efforts in teaching a young person to cast are worth it. .