Pedestrians almost never walk where architects say they should. I just wanted to point that out, because there's so often some path that some designer has drawn on a plan that looks like it is reasonable, but if it's not the shortest path, and not everything else is physically obstructed or dangerous, people are going to find another way around.
Mokalus of Borg
PS - Sometimes they'll go where it's dangerous or obstructed anyway.
PPS - Sometimes specifically because it's dangerous or obstructed.