Germany took ~150 years of Lebensreform movements (which itself had Freikörperkultur as one line of thought and action among many) to get there. As the articles mention, things that contributed a lot included the fact that they still had living traditions of public bathing in sparsely populated areas (add Scandinavia and rural areas to the mix), and that Germany was a very industrial and educated country, that had the infrastructure to generate what were essentially academics in academical circles theorizing and practicing all of these ideas first, and there was still a strong memory of pre-industrial life in general (that these movements saw as better in those lines of way of life, to react to the then novelties of industrial and urban living). How would we translate that german social environment to places and societies a lot different ? example, much poorer with less intelligentsia, no prestige or memory of premodern living, multicultural multiethnic societies with low cohesion, with outright hostility to all these nature-weirdos that want veganism, nakedness, primitivism, etc while the current media landscape is dominated by hollywood idolizing private wealth, luxury and puritanism (like the amount of sex in Marvel films, after Iron Man 1).