Long before commercial hotels, pilgrimage routes generated a demand for lodging that repeated at fixed intervals along a road. The institutions built to meet it set patterns still visible in budget accommodation today.
A day's walk set the spacing
Pilgrims moved on foot at a fairly consistent daily distance, which meant shelter had to appear at regular intervals rather than only where towns happened to be.
Houses established at those intervals became fixed points, and settlements often grew around them rather than the other way round.
The spacing survives on well-established routes, where the day's stages still correspond to places founded to receive walkers centuries ago.
Dormitories came from cost, not preference
Shelter offered charitably had to serve as many travelers as the building could hold, which favored a large hall with beds over individual rooms.
A single heated space, one set of washing facilities and one kitchen served everyone, which minimized both construction and running costs.
The modern hostel dormitory inherits this arrangement directly, including the shared bathrooms and the communal kitchen that the layout implies.
The rules did the work of a price
Where lodging was offered without a commercial rate, access was controlled by conditions instead: a maximum number of nights, arrival on foot, and a credential proving the traveler was on the route.
Curfews and early departure times performed the same function, sorting genuine travelers from people looking for cheap housing.
Those mechanisms persist in various forms, and their descendants are visible in stay limits, lockouts and quiet hours at budget properties.
Volume changed the model
Where a route becomes popular, charitable capacity is quickly exceeded and private guesthouses open alongside it, offering private rooms and later check-in for a fee.
A tiered system develops: donation-based houses at one end, small private lodgings in the middle, and conventional hotels serving those who are not walking at all.
Booking rules diverge along the same lines, with the traditional houses often taking walkers in arrival order and the commercial ones taking reservations.
What the format still gets right
Route lodging is organized around drying wet gear, feeding people at a fixed hour and getting them out early, which are the actual needs of someone walking all day.
Those functions rarely appear in a conventional hotel, which is built around the assumption that guests arrive by vehicle and leave the same way.
The persistence of the older format on walking routes is a straightforward case of building type following the way guests arrive.