You're generalizing. In my part of the States, EVERY home has a basement. That basement is usually unfinished. They'll leave exposed framing on half-walls and w

You're generalizing. In my part of the States, EVERY home has a basement. That basement is usually unfinished. They'll leave exposed framing on half-walls and walk-outs. It's up to the buyer to determine whether more livable space is necessary (and therefor drywall).