Showering in the Military is totally different than showering at home, as someone before me has pointed out. New members of the Military, any branch need to be aware that water is not as abundant as at home when the pipes bring it in. Water is often in short supply. Yet, everyone must keep clean. Thus the need for proper instruction. Additionally, this type of training helps eliminate the culture shock that they will be exposed to in the field. One must get comfortable with the human body, and this is the best way. Nothing sexual, or erotic, just basic training and growing used to the idea that we will all see each other naked very often.