What a passionate thread this is. I have worked in cycling for years, am a cyclist, a driver, use public transport etc. Driving last night with my two young kids, who also cycle, we made the same observations. It was the kids who first asked me why are most cyclists wearing full black and no lights. We then played a game who can spot all the cyclists, and count those with lights and those without. This teaches them to look out for them but also not to put themselves in a position where we have to strain to find them.