Ah, find memories of my late father-in-law immediately come to mind today with this.
We never argued, but we did debate on all sorts of subjects. In fact, sometimes he would deliberately goad me and take the opposite corner ‘just to make things interesting!’
He loved to hear another point of view and the reasoning behind it. He could hold a conversation with all ages from all walks of life.
It used to drive MIL scatty. She would never join in you see, too busy watching the soaps, so it sort of became ‘our thing’. I miss that.