What would have likely also contributed in the case of Chilton Cottages in the screenshot was isolation.
Going downhill walking along the track, or alongside it, would bring inhabitants to the exchange sidings at Chilton Junction and the signalmen may have lived in the cottages, but from there, it would have meant crossing several fields and a footbridge over a stream to reach a country lane in the middle of nowhere.
Bishop Middleham is at the northern end of the lane, about a mile and a half walking, much of it across fields.
Going uphill along the track, or alongside it, would take the inhabitants across the bridge over the ECML and after about a quarter mile they could take the farm track to Thrundle Farm, and then to Chilton Lane/Gypsy Lane, a walk of 0.6 miles from the cottages. The Surtees Arms pub at the southern edge of Ferryhill was a 1.3 mile walk from the cottages.
Shops and the station at Ferryhill were a 2 mile walk.
I know that it is often said that older generations were made of sterner stuff, but I do not doubt that the wife of a worker living in Chilton Cottages post-WWII would have probably jumped at the chance of a new council house, even if it was a prefab in Ferryhill, Spennymoor or Coxhoe.
Not least to be done with a walk along muddy farm tracks, fields or country lanes with heavy shopping bags.