Can only the co-pilot parachute in a civil aviation plane? Does anyone else write wills?

This question has to talk about the design of civil airliners. Considering that the flight altitude of civil airliners is basically in the stratosphere, the airports of civil airliners are designed as closed air pressure cabins, otherwise passengers will be unbearable. When cruising in the air, the air pressure in the cabin is much higher than the outside air pressure. At this time, if you want to open the hatch and parachute, people and seats in the cabin may be blown out of the cabin by strong airflow, and the plane may also disintegrate. As you can see on TV, the cabin of the transport plane that can skydive is not completely closed. The air pressure is balanced. They can open the door. Besides, how can the co-pilot go skydiving? His duty is there. Just like the captain, if the ship sinks, the captain will be the last to leave. So there is no parachute on the whole passenger plane. Even if the cabin decompression allows passengers to skydive, passengers will either suffocate from lack of oxygen, freeze to death, be disabled when landing, or die directly after jumping from high altitude. Skydiving is a technical activity, and it is extremely dangerous without training, so parachutes are not impossible to match, but absolutely unnecessary. If the plane has an accident, the captain should find a place like water or grass to land, so that passengers are more likely to survive than skydiving. There are life jackets and inflatable floating tools on the plane. I guess there's no time to write a will. It's more realistic to take a phone recording.