Very true about the age, attention spans and experience. One of the most important aspects of teaching/learning is to gauge the readiness of the student to be able to successfully learn, and safely complete the task. This is true whether it be stoves, knives, guns, boats or the myriad of other tools and activities we try to expose the boys to. It is all a learning experience and growth on a continuum. Even the requirements for ranks, and badges exemplify this growth.