Standing on a Plane

As I was recently on a plane, I realized how much I hate when people stand up once the plane lands. As I am aware, and I am sure everyone else in the world is aware, once the plane lands and pulls into the terminal, there is at least 8 minutes before people start to move. I have no idea why people stand up as soon as they can, and then just stand there staring around. I can get if their legs are sore, but still, there is no reason to stand for no reason for 10 minutes!!!!