Why is this the answer?

The answer is sun because this is a super cool riddle that uses word pictures to describe light and how it moves all around us. The secret to solving this puzzle is to stop thinking about a person or a heavy object and start thinking about something that is pure energy and light. Let us look at the first clue: "What goes through the door without pinching itself?" When the sun comes up in the morning, its bright rays shine right through your windows, glass doors, and even the tiny cracks around a closed door. The sunlight is not a big, solid thing like a baseball or a person, so it does not have to worry about bumping into the door or getting "pinched" when the door closes. It is just light energy passing right through the air and glass without any trouble at all. Now for the second clue: "What sits on the stove without burning itself?" When you stand in your kitchen, you can see the light from the sun shining on the floor, the counters, and even the stove. The light is resting or "sitting" on the stove top. The sun itself is a massive star that is always burning, but the light that travels all the way to Earth is a safe kind of energy that cannot be burned again by your stove. It is just a gentle beam of light sitting there, and since it is not made of wood or paper, it will not catch fire. The sun's light is totally safe to sit on your stove. Finally, the last clue asks: "What sits on the table and is not ashamed?" The sun's light shines right on your table, lighting up your breakfast or the pages of your favorite book. The sun is the most important light in our solar system, and it gives light and warmth to everyone and everything on Earth. The riddle says the sun is "not ashamed" because it is a confident, huge star that is always shining brightly for the whole world to see. It is always there, big and bold, shining on your table. All three of these amazing clues point to the powerful, beautiful sun.