Yes i think young kids should kill a deer if they want. The parent field dressing and dragging it out is just being a parent. You feed your kid although they dont work to buy the food you give them a bath and brush there teeth you change there pants these are all things they cant do.Its called teaching make them help drag it and field dress it its just as big of a deal to them to help at that age as if they was big enough to do it them selves.The earlier you get them going on something the more they will learn and they will respect it more with age.