I've often wondered what is the point of Dave and Julie from 'up north'.
They don't really seem to add much to the narrative. They aren't homeless. They aren't particularly humorous or interesting. In fact, they seem, to all intents and purposes, to be as dull as ditch water compared to others who feature in TSP like Grant, the blind mystic at Culbone or the tortoise man of Pencarrow Head.
They clearly do exist. They feature in TWS and LL and they accompanied Raymoth in April 2024 when they walked the 120 mile Thames Path to raise awareness of CBD for the PSPA. So they are clearly friends and they are one of the few people who are depicted in TSP in a generous light.
Maybe they feature because they are real people and its easier for SW to depict them as they are rather than invent yet another fictional character. Maybe as she ends the narrative of the walk, she has simply exhausted her creative juice and reverted to something simpler and more truthful.
The problem is, that it is all fairly humdrum stuff. Julie remains mute while Dave comes across as a fairly loud mouthed but simple sort with a penchant for gargantuan fry ups: "We're off round Portland today. Quite like Weymouth, me, we've done some shopping, tried to do some washing but it won't dry so we've bought new socks and T-shirts, went to a museum, even got me into an art gallery, didn't you, Ju? Not for long though. So we're round Portland. Two days for us, I think, so we won't see you again after this".
It's hardly the stuff to set the pulses racing! I shudder to think what TSP would have been like if SW had stuck to the truth throughout. Akin to watching paint dry! Of course she probably realised this and decided to make 95% of it up. D&J are perhaps part of the small amount of (rather tedious) truth that remains in TSP.