Pedestrians do not wear down sidewalks beyond the normal weathering caused by exposure to the atmosphere. Proven by multiple studies. Sorry.
Also, more proof that bicyclists don’t obey traffic rules: http://www.youtube.com/watch?v=9YEmBBWdxwQ
Like this?
http://www.youtube.com/watch?v=b7AVC1YCcO0
or this?
http://www.youtube.com/watch?v=sXPb3nnqdDo
or this? The bikers weren’t even on the road and this driver still wanted them off.
http://www.youtube.com/watch?v=xFM5QiAd3QA
or this?
http://www.youtube.com/watch?v=XqjkAcLHtr8
I can also produce a thousand videos showing how drivers routinely try to harm bicyclists, at no fault of theirs.
I get so mad when I see bicyclists riding right through stop signs without stopping. It also ticks me off when they ride against traffic. Why do they think that traffic laws are for anyone but them?