* All charged objects exert a force on each other. This is the fundamental principle of electromagnetism. Charged objects create electric fields, and these fields interact with other charged objects.

* The force can be attractive or repulsive. Like charges (positive and positive, or negative and negative) repel each other. Opposite charges (positive and negative) attract each other.

* The strength of the force depends on:

* The magnitude of the charges (larger charges = stronger force)

* The distance between the charges (closer charges = stronger force)

So, the statement that charged objects don't have to exert a force on each other is incorrect. There will always be an electrostatic force between them, even if it's very small.