Track Boundaries

When racing, just for kicks I went right off the track at the start of the race, knowing that the track wound in a circle. I went off the track and cut right across the expanse of land till I got to the road again. Expecting some sort of fail safe mechanism to kick me to last place I was shocked to see myself in first place and continued the race unencumbered.
Just a friendly suggestion, it would be very helpful if there were boundaries around the roads of the individual tracks to stop racers from just taking advantage of their unprotected nature.
Just a friendly suggestion, it would be very helpful if there were boundaries around the roads of the individual tracks to stop racers from just taking advantage of their unprotected nature.