precipitation in Culture. In meteorology, the fall of water, ice, or snow deposited on the surface of the Earth from the atmosphere. In chemistry, a chemical reaction in a solution in which a solid material is formed and subsequently falls, as a precipitate, to the bottom of the container.
In the United States Army, Army Reserves, and Army National Guard, the maximum age allowed to enlist and ship to basic training is 35 years old. The Army experimented for quite some time allowing anyone up to the age of 42 years old to enlist and complete basic training.
You also have to complete it, learning self-discipline and inner self-control. I think age 17 is too early for one to decide to join the military. A 17- or 18-year-old is not concerned with fighting for the country; teens are more into having fun and enjoying life while they can.