Yoke and Pedals

Both occupants have a yoke and pedals, however I'm the only one to use them. The passenger is not to hold on to the yoke or place their feet on the petals. Here is a photo of the right seat yoke and petals. I generally do not allow passengers fly the airplane. It's something they are not trained to do and it generally doesn't work out that well. I once did ask my wife to hold things steady while I looked at a sectional (map). Next thing I knew we were heading down and to the left. Not too good.