I agree with your point regarding trains, on the condition that my bike would be cosseted in return for paying its fare.
As for cyclists paying a VED though, no not at all for all the reasons everyones already stated. From a personal point of view I can happily live without any of the cycle 'farcilities' provided on our roads - the only ones I use are the advanced stop areas when no cars are parked in them, and because there will always be some idiot sat in his motor on the green patch of paint, i'm happy for him/her to pay for the priviledge. I contribute also when paying VED on our Honda Civic.
If that were introduced there would be no excuse for councils to ignore cyclists, we would have full parity and rights.
As already touched on a few posts up, do you really think government, local or otherwise would look at your contribution that way? Or have ya not been following the news recently?
My local MP, Mr Purnell (who we all have to thank for wrecking a few livers since he changed the licensing laws) apparently left one of his 'second homes' in a right mess when vacating it, despite claiming cash for a cleaner.
They aren't getting VED from my low carbon hobby. The missus says thats partly cos i'm a tightwad though
Maybe that would alter many peoples perception of cyclists as a nuisance to just a slow moving vehicle.
In the minds of most, slow moving vehicles are a nuisance. I'm afraid we're right down there with traffic wardens in the eyes of the motorist