I suspect this may be one of those subjects (indigenous cultures) where the way it’s taught and the extent to which it’s taught are highly regional? Also, probably matters when you went to school (I imagine in some areas they teach a lot more about local indigenous cultures, and some areas less, but that in general there’s more education about indigenous cultures than in past years).
Just as an example… when I was a kid the popular culture was definitely teepees, etc… but it wasn’t long before we learned that the Wampanoags had wigwams, not teepees. I imagine kids in NY might have learned about the Iroquois longhouses?
It wasn’t until I lived in the central time zone that I learned about the Mississippian Mound Builders, etc.
Anyway, reminds me of a book I thought was interesting… The Ordeal of the Longhouse (it’s about the Iroquois Confederacy).