Well... I don't know about this. Personally I pretty-much try to follow all of the rules in whatever situation I happen to be in, as much as possible. I just want to keep myself as anonymous as possible... to blend into the woodwork, so to speak. Breaking rules tends to get one noticed... to make one stand out.

As far as systems with rules goes... when I was in college, many years ago now, I had a professor who commented: "There are two ways to put in sidewalks. One is to put them where you want them & hope people use them. The other is to watch where people walk & put them there." I've always remembered that comment. My personal opinion is we should watch to see where people walk... & put the sidewalks there.