Why don't they do what many other cars do, and put the wiper controls on its own stalk on the right-hand side of the wheel? Then they don't need any buttons at

Why don't they do what many other cars do, and put the wiper controls on its own stalk on the right-hand side of the wheel? Then they don't need any buttons at all, on either stalk (on my 2003 VW, the left stalk is for high beams and turn signals, the right stalk is for the wipers, and the steering wheel buttons are for cruise control). Or is the gear shifter on the right stalk?