You mean like walls all around the edge of the circuit?
Run off areas are needed for safety and they're a good thing, but they need to be in such a way that the driver is punished to some degree for using it. Think of of it like - "okay, you ran wide off the track and you just smashed your car, instead of 1000 pieces and a big cost, have a 15 second slow down and maybe some scrubbing to your tyres, so you'll think about it twice next time".