@Agracier I totally understand what you're saying. What I struggle with is the online culture the younger generations are developing is anything but prudish. Twenty-somethings (at least in the US) have no problem sharing images of themselves online showing whatever they want. The proliferation of self-publishing pornography like OnlyFans and the like, the fact that even mainstream social media like Twitter allows for the posting of nudes, I don't see this as widespread creeping prudery. Could it be more an increasing association of nudity with sexuality unlike the, let's call it more ‘wholesome’ attitude to nudity of the 60's/70's?
I would say that even on-line social media is becoming more prudish. Tumblr and Facebook are good examples of this. FB is notoriously prudish and will (temporarily) ban someone for even innocent depictions of nudity in Great Art or cartoons, book covers etc. I've experienced this often enough. Just the word ‘Porn’ in a image can get one banned. And Tumblr underwent a whole metamorphosis some years back with more or less the same policies as on FB. I also read here on Zity about the condition/disappearance of ASSTR (?) the sexual story repository going blank.
And these are just a few instances. It is no secret that many influence groups in society are striving to ban all forms of nudity/eroticism/pornography on-line. All in line with the old fashioned and tried and tested script of moaning and groaning about society going to Hell in a Handbasket and how things were so much better in previous times before gays dared to show themselves in public, married or even (gasp) adopted and raised kids! Or that people could more or less effectively change their outward appearance to the gender of their choice. The howls of rage this causes in many circles is bewildering, especially the ridiculous bathroom for trans people legislation or the banning of what are considered to be sexually improper books in libraries.
Twitter is more or less holding steady and bucking the trends, but I wouldn't count on it holding out to pressure.
Things like OnlyFans is a platform for generating money for the participants, I would call it a welcome way of ‘democratizing’ income streams for the amateurs. The same with webcam sites like Chaturbate. The income needn't all go to corporate entities.
And in book publishing all over, erotic books are becoming more and more scarce, even in secondhand bookshops. Back in the 1990s virtually all secondhand bookstores had sections with sex book, mags and comics for sale, even stores run by Muslim owners. As of present I know of just two such stores left in a world capital like Brussels. And only a few left in Paris. Stores selling newspapers and mags also had storefront displays showing erotic comics and mags. Then it evolved to wrapped in plastic items and now such stores sell none any more. Not considered appropriate by society anymore.
I could probably come up with more examples given time and the inclination. These are just those off the top of my head.
Perhaps the attitudes towards nudity in the 60s-70s were more wholesome or perhaps people were intrigued and amused by the relaxation of social mores from the World War era standards. Lack of frivolity and lack of sexual fun can become boring and enervating after a time. Especially when life was getting better after a time of wartime shortages and deprivations and limitations. The 60s-80s were a time for fun for a change. Now we are entering a period of things being very serious in almost all aspects of life. War, economic distress, dire ecological predictions, a great mixing of peoples and cultures, rapid population growth and the resulting shortages of just about everything. And everything changing so utterly fast.
Undoubtedly things will change again after this cycle of uncertainties and great changes ends, but it won't be for us.