The least noticeable feature about cyclists for non-cyclists on London's streets is the lycra. Much higher in their profile are the lights, the bright colours, the helmets, all of which accentuate the danger/visibility aspect. And, what would you know, the main reason why these other groups don't cycle is because it's perceived to be dangerous, exposed, vulnerable, not separated from fast moving traffic. And yet it's lycra that gets mentioned. Classic distraction stuff though not quite up with Boris' headphones standard.
I can only conclude that there is a fetishised taboo centred on lycra amongst those that don't wear the stuff in public. I have to wonder what these guys wear at their private parties.
Going to a bike fair and asking for cycle clips is a bit like going to an arms fair to buy a peashooter.