Freda - cannot disagree, and if Pooleys, or indeed any other publication states - PPR required, then fine. I agree that it only manners to co-operate and seek PPR.
Filing a flight plan also can take care of the PPR.
I think the issue comes when out VFR flying, and you call up to join, and there is an issue with PPR. I do not see much of an issue from the airfileds viewpoint.