there are also plenty of other sources for information on what is going on around you (except for providing information about other cyclists). Reflections in windows, bus stops, other vehicles (it clean enough) all prove enough information to know that there is a vehicle. People seem to forget that you don't need to know that make model or even colour of a vehicle to know that it exists and that is all that is needed in the way of information. That there is a vehicle there.
I have been mentally replacing the word mirror with the word helmet throughout this entire thread.
It is a skill, just like all the other ones such as signalling, reading the road, cycling in a straight line, track standing cornering at speed etc. some find it easier than others. I imagine if you find it difficult you won't be cycling in central London or other busy cities for example, if you cycle on really quiet roads then you could hear approaching traffic fairly well. Yes you should keep on practising it, trying to improve, but they may have adapted their cycling to suit their skills.
I only cycle on quiet country roads. I am practising turning head round while cycling I will not be going in high traffic areas until I feel completely safe doing this.
I can, I do, and I still choose to fit a mirror, thanks. I can cycle up Box Hill in a 50" gear, but I choose to cycle up it in a 30" gear - it's easier. God speed to anyone who chooses to cycle up hills in a higher gear than me, or not to fit a mirror. I trust you in turn will wish me God speed, and preferably avoid implying that I fit a mirror because I haven't bothered to acquire the skill of looking behind me.
Evolution provided us with two legs that articulate in a way that allows walking from A to B, so no need for bicycles at all?
