In message , Cast_Iron
writes
I would suggest they are guilty of using an ecologically sound form of
transport that if more widely adopted would resolve London's traffic
congestion problems at a stroke

Be okay until it rained. Then they would all be getting on the bus.
The question you have to ask yourself is if skating/bikes are so great.
Why are there so many cars on the road. People like their cars. Simple.
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CJG