It turns out that there are several reasons why there are no parachutes on the plane. Most emergencies occur at the time of takeoff and landing of the aircraft. In this case, it's dangerous for passengers to use a parachute because it won't open in time and the person will crash. If the plane breaks down at altitude, parachutes won't save the passengers' lives either. At a standard altitude gain, the temperature outside is from -40 to -60°C, and there's practically no oxygen. In such conditions, a person cannot survive even with a parachute. And it's too expensive. A parachute costs about $1,000.