Well, actually there have been piblic "bath rooms" all over Northern Europe during the Middle Ages - since the first crusades - in towns, greater villages and (nearly) all manor houses.
This was stopped/stopped, when the plague arrived
plainoldme wrote:However, isn't there some artistic representation of laundrying? There are carvings of peasants doing various chores, like winnowing grain and ploughing fields.
In my native town, one of the (open) sources was used
a) to supply the water for the town's bath 'house' (13th/14th century, in the local hospital)
b) as 'washing room' - from about the same period until the about 1955.
(Only written sources about that - no carvings or similar)