This is a bit of a tricky question because it's a little like saying "why does the ocean give us water but not the Earth?"

Here's why:

* The sun IS part of the solar system. It's the biggest and most important part, but it's still a part.

* The sun is the source of sunlight. Sunlight is the energy and light that the sun emits. The entire solar system is bathed in this sunlight, but the sun itself doesn't "give" it to the solar system as if it were a separate entity.

* Everything in the solar system receives sunlight. Planets, moons, asteroids, and comets all receive light from the sun.

So, the solar system doesn't "get" sunlight in the same way a planet does, because the solar system *is* the thing receiving the sunlight.

Think of it like this:

* The sun is the stove.

* The solar system is the kitchen.

The stove (sun) creates heat and light (sunlight). The kitchen (solar system) is the space where that heat and light exist.