To get away from the rubbing and to see if the steering effort will be a little less. Not that it bothers me now, but if I ride another bike then jump back on mine, I realize it does take a little more effort to initiate the turn. Once it is leaned over, it feels like it is on a rail.
I have about an 1/8th mile gravel driveway. Takes some getting used to with the dark rear, but the biggest thing is to keep a little speed up. The slower you go on gravel, the more steering input is required.
After a while it becomes second nature and you will hardly notice it.