Sorry Richard, I still don't think it a traditional UK skill mate. Flint yes, without doubt, the Viking connection regarding friction is a tad thin I feel. The UK was and still is a bit damp to say the least, and when and if, friction methods were used, I would imagine that some poor bloke or lass was kept on hand to make sure the fire never went out; lets be honest, friction lighting is not ideal for a quick brew now is it.
For that matter hammocks are not traditional UK camping gear either, its something else we have jumped on and said its bushcraft; well its not really, not in the UK anyway, great on a ship or the tropics (helps keep the bugs off in the jungle), but lets be honest, a winter tarp/hammock/underblanket etc, is heavier than my Hex3.
Its all fun to learn and indeed, use at the end of the day. I don't like the term 'Bushcraft' much, not in the UK sense anyway, for me, its good and solid old fashioned camping and I love it