Eli5: Why did civilizations such as the Pre Dorset, Thule, and Inuit not migrate south if their environments were so harsh and extreme?

Question

I read a few articles where some of these civilizations main focus was keeping warm because they were located so far north. So why would they not migrate more south?

In: 661

Answer 1

They didn’t really know that there was anything else. For all they knew, it was the same further north, south, ot east.