'Cause it's the cyclists that need educating...

Doesn't the highway code state that "cyclists must use cycle lanes if it is possible to do so" or something like that? My take on it is that 'if safe to do so' is implicit in this and this is not always the case, but the statement has the feel of a command.

http://www.direct.gov.uk/en/TravelAndTransport/Highwaycode/DG_069837

States not compulsory.