Why do things fall at the same speed regardless of weight?

Things fall at the same speed no matter how heavy they are because gravity pulls them equally, and air resistance affects them in a way that balances out their weight.

Imagine you're on a playground slide with your friend. If you both go down the slide at the same time, one of you is tiny, and the other is big, you’ll probably reach the bottom around the same time. That’s because even though the bigger person weighs more, they also have more push from gravity, which makes them go faster. At the same time, air resistance (like wind pushing against you) is stronger for the bigger person too. It's like having a little extra friction on the slide.

Now imagine there’s no air, just you and your friend sliding down in space. Then both of you would zoom down at the exact same speed, because there’s nothing to slow you down. That’s what happens when things fall, gravity gives them all the same push, and air resistance helps balance out their weight. So even if one thing is heavier than another, they still fall together like best friends on a slide!