Here's why:

* Gravity is an intrinsic property: Gravity is a fundamental force that is inherent to any object with mass. The amount of gravity an object exerts depends solely on its mass.

* Gravity weakens with distance: While the gravitational force between two objects decreases as the distance between them increases, this doesn't mean the object's own gravity changes. It's just the force of attraction that gets weaker over distance.

Think of it like this:

* Imagine you have a magnet. The magnet has a certain magnetic strength, which is inherent to it.

* If you move a piece of metal closer to the magnet, the magnetic force pulling on the metal is stronger. If you move it further away, the force weakens.

* However, the magnet's inherent magnetic strength doesn't change, it's just the force it exerts that changes with distance.

In summary:

* An object's gravity is a property of its mass.

* Distance affects the gravitational force between objects, but not the object's inherent gravity.