This article from Bike Biz explains how a study has highlighted that there are some people don't cycle more because its 'not normal'. It also continues to explain how local authorities should ignore regular cyclists when designing new cycle infrastructure. Well personally I think that's madness. I can sympathise with people who either don't want to ride or its not possible but when people say its not 'normal', well I think that's a bit much.
There are many interesting points in article and it is a must read: