Its a strange one when looking from the outside (from one of the most cycling happy countries). Here you're considered a feckin muppet if you don't have a bicycle and use it frequently.Caused by the hate for cyclists that seems to be an accepted view in this country. Supported by gutter press and complete imbeciles.
(I don't have one though...)
Thought the whole UK drivers vs cyclists thing was a bit of a joke when first encountering it, but it really seems that a lot of drivers dont like the cyclists. Can only assume it comes from the drivers being annoyed and jealous to see people who are fitter, less lazy, less polluting and less enviromentally damaging happily biking around .