Here's why:

* Friction is a force that opposes motion. It arises from the interaction between the surfaces of the object and the surface it's resting on.

* To move an object, you need to apply a force greater than the force of friction. This means you need to overcome the resistance caused by friction.

Types of friction:

* Static friction: This is the force that prevents an object from starting to move.

* Kinetic friction: This is the force that opposes the motion of an object that is already moving.

Overcoming friction can be achieved by:

* Applying more force: The greater the force you apply, the easier it is to overcome friction.

* Reducing friction: You can reduce friction by:

* Using lubricants: Oils and greases reduce friction between surfaces.

* Smoothing surfaces: Smoother surfaces have less friction.

* Changing the surface: For example, using wheels or rollers can significantly reduce friction.

Important note: While friction is a force that needs to be overcome, it's also a crucial force in many everyday situations. Friction allows us to walk, drive cars, and write with pencils, to name a few examples.