Here's why:

* Static Friction: This is the force that prevents an object from moving when a force is applied to it. It's like the "holding back" force that keeps things in place.

* Kinetic Friction: This is the force that opposes the motion of an object that is already moving. It's the "slowing down" force.

So, when an object isn't moving, it experiences static friction, which is the force that keeps it from moving.