I do it because I think it looks impressive, especially to an old couple behind you in an RV while I am taming a rocky Mountain pass on my fully-loaded touring bike. They hang back and watch with amazement as I carve up each turn with flared knee, like your proud grandfather carving the turkey at Thanksgiving dinner. Once the rode straightens out, I move over and let them pass. It's not odd for them to applaud or even toss me a garland of roses as they do.