I quite agree with bigreddog. When I was an ardent young chap, the mantra was protection, location, water, food - and fire was acknowledged to be important for all of them and especially the first two. But that was a general principle. As for Wales, or any of the remote areas in the UK, lighting a fire is not going to be a priority, simply because of the lack of fuel. That's why the advice to those going into those areas has always been to carry wet weather gear and supplementary warm clothing. I wouldn't argue with a tommy cooker for a hot drink, but I think a whistle is a higher priority.

You have to tailor your plans - and your kit - to the likely survival environment.