Here's why:
* Gravity is a fundamental force: It's one of the four fundamental forces in the universe, along with electromagnetism, the strong nuclear force, and the weak nuclear force.
* Mass creates gravity: Any object with mass has a gravitational pull. The more massive an object is, the stronger its gravitational pull.
* Even tiny objects have gravity: Even a tiny pebble has a gravitational pull, but it's so weak that we can't feel it.
* Gravity acts over distances: Gravity is a long-range force that acts over any distance, though its strength weakens with distance.
So, everything from planets and stars to dust particles and even you have gravity!
It's just that the gravity of smaller objects is so weak that we don't notice it in our everyday lives. It takes massive objects like planets and stars to have a noticeable gravitational pull.