The problem is that your friends probably don't post much to facebook, and so they'd show you that, and you'd get to the end and find something else to do, so they have to bulk it up. There is a "friends" feed that's buried under a couple of menus that does this though.

You don't need to pay anything. That's just how Facebook works when you have active friends on it and you engage with their content.

I do find it interesting that tech people are so baffled when other people enjoy Facebook and derive value from it. I think we see so many exaggerated headlines about algorithms and feeds that people who don't use the site have a very different idea of what people who do actually use the site are seeing.