Long-distance walking routes rarely take the most remote line available. They are routed to meet villages at intervals, and that decision shapes everything about how the trail is used.
Stages are defined by where a walker can stop
A day's walking has a practical ceiling determined by terrain and daylight, and a route is divided into stages that end where food and a bed exist.
That constraint works backwards into the routing: the path is bent towards settlements spaced at plausible intervals rather than drawn as a direct line.
Where no settlement falls in the right place, a hut, a refuge or a farm offering beds is developed to fill the gap.
Resupply removes weight from the walk
Carrying several days of food changes a walk fundamentally, adding weight that slows progress and increases the effort of every ascent.
A route with daily resupply allows a light pack, which brings the trail within reach of walkers who could not manage a fully self-supported crossing.
That accessibility is usually the explicit aim, since a trail used by few people attracts neither maintenance funding nor local support.
Local economies fund the maintenance
Waymarking, bridges, steps and erosion repair cost money, and much of it comes from municipalities and regional tourism bodies rather than from walkers directly.
Those bodies invest because walkers spend in the villages the path passes through, which turns the route into infrastructure with a measurable return.
A trail that bypassed settlements would have no such constituency, and historically such routes have fallen out of maintenance and disappeared.
Villages also provide the escape routes
Weather, injury and simple fatigue require a way off the trail, and a settlement usually means a road, a bus and a means of shortening the walk.
Planning a multi-day route therefore involves noting where those exits fall, since the gap between them determines how committing a given section is.
The same connections allow a walker to join partway, which is how most long trails are actually used rather than end to end.
The trade-off is in the character of the walk
Routing through villages means road crossings, farmland and stretches of surfaced track, which some walkers experience as a dilution of the mountain sections.
Alternative high variants exist on many trails precisely for that reason, offering a more exposed line for those willing to carry more and commit further.
Choosing between them is a decision about self-sufficiency rather than fitness, and the two lines frequently rejoin at the same village that evening.