I never said the borders of the states were the borders of culture. They are merely convenient units to show the breadth of a culture. In fact I split states several times once we got to drilling down at your request. And none of this makes Indiana part of Southern culture. It is firmly Mid-West and part of Ohio River Valley culture built through the 150 years or so the river was the main mode of transport. In fact it’s this same culture that reaches down into Western Kentucky. Which is why Kentucky is only debatably southern, switching depending on which map you use.