Read the following paragraph.
During the spring training period for new smokejumpers, and refresher training for experienced smokejumpers, they practice the basics of their craft such as aircraft exiting procedures, parachute maneuvering and emergency procedures, parachute landing rolls, timber let-down procedures, parachute and cargo retrieval, and tree climbing. Some training sites even have "virtual reality" parachute jump simulators to provide on-the-ground practice, with an experienced smokejumper at the computer.
Answer: why is training so important for smoke jumpers? Think about this paragraph and what you already learned about smoke jumpers.