What are people getting out of stories? I look at them sometimes on Instagram and I don't understand how this is better than just putting the same images in a p

What are people getting out of stories? I look at them sometimes on Instagram and I don't understand how this is better than just putting the same images in a post. I guess I'm old now and I don't get what these wacky kids are doing. For this, how is it different than a webpage? Why would I do whatever this is instead of just making a webpage with the same content? Is it just the interface where you swipe from one to the next? Is that supposed to be some amazing innovation?