What is the purpose of the 10 yard box in the soccer field?

The goal area is 6 yards deep and 20 yards wide.

1. During the taking of a goal kick, the ball may be placed anywhere in this area.

2. During the taking of any free kick (direct or indirect), the ball is moved away from the goal line along a line perpendicular to the goal line to the top of this area; exactly 6 yards out. This is to prevent, for example, an indirect free kick 6 inches from the goal line. It would also give some running room for a defensive free kick going out.