It's a shame that Cyclist is now coming off badly because of his/her doggedness, because taking the personalities out of this for a minute, I couldn't disagree more strongly with the general gist of this thread. Firstly, I don't accept the widely held view of cycling as a particularly dangerous activity. Secondly, just because you might feel someone is making 'bad choices', does not give you licence to stick your oar in. Bear in mind that there are plenty of contact sports (football for example) which have roughly the same level of fatalities per participant (actually higher). One could use the argument often applied to cycling, namely "wearing a helmet isn't going to do any harm, so why not be safe' to football. Try going to a kids match and admonish the irresponsible parents who aren't making their children wear a helmet. Why not, as was suggested earlier, raise the issue with the police? People are bad at judging risk and quick to jump in on a moral panic. I worry much more about the inactive kid, sitting at home eating junk food than the one climbing up a tree without padding, cycling without a helmet, or playing contact sports without a mouth shield. We are creating a culture of risk aversion and puritanism.