Ah, yes, the ongoing struggle of cyclists not obeying traffic laws. Where does this problem begin?
For starters, there isn't much bicycle safety taught in our schools. Parents are too busy climbing the corporate ladder or trying to re-live their youth through their kids. Several parents were never taught the basic bicycling rules of the road, so the cycle of ignorance continues.
Where does this responsibility lie? For starters, those cyclists who understand the simple rules of obeying traffic signs can do wonders by setting an example. Gary Boulanger spouts off a tad here.