Why is the shoulder more commonly dislocated than the hip?

Anatomy: The shoulder joint is a little like a golf ball on a tee, and relies on ligaments and muscles to remain in position (located). The hip is more like a ball inside a socket, or a bowl that wraps halfway around the ball. It is much easier to knock a ball off a golf tee, than out of a bowl.

Shoulder dislocation: The shoulder is the most mobile joint in the body and has a flat "socket" called the glenoid. The hip, like the shoulder, has a "ball, " however the socket is very deep leading to much greater stability.