In addition to the answers and comments that clarify the potential confusion between 'normal' rudder controls and wheel braking with rudder toe-brakes, I thought it might be interesting to add that at least one general aviation plane is being designed with actual rudder braking.

The DarkAero 1 is unusual in that it has a split rudder that is designed to be able to open out in a way to provide air brakes.  Presumably it won't be much use when taxiing, but I suspect that in addition to being useful on approach to landing, could also be useful on the ground when coming to a stop after landing.  It might save a bit of wear on the brake pads if nothing else.

There's a video explaining it here: https://www.youtube.com/watch?v=GyyeemRG_xo