I'm not sure about other countries. There is a culture refuse to throw away books in Germany. People would put on the streets for free (I found two interesting books with this method).
In the US people put "Little Free Libraries" in their yards. They're all over the place in the Seattle area.
"Over the summer, ordinary Germans who spotted his [Peter Sloterdijk] books in my hands engaged me in conversation on trains, in coffee shops, at universities, and in bookshops." [0]
[0] https://www.newyorker.com/magazine/2018/02/26/a-celebrity-ph...
and a rave
Living in Germany, I can confirm that it’s part of the everyday scenery here (Stadtbild).
> and a rave
I can confirm that techno culture is a deeply rooted part of the urban landscape. However, the era of massive, free street parades effectively ended with the 2010 Love Parade tragedy in Duisburg, where a crowd crush claimed many lives. For years, such large-scale public raves vanished due to strict safety regulations. It’s only recently that we’ve seen a revival with 'Rave The Planet' in Berlin—an event led by the original Love Parade founders that attempts to bring techno back to the streets, though under much tighter organizational control.
Germany is a lot more conservative than Denmark, so I wouldn't be surprised if they where more reluctant to throw out books. On the other hand, other than myself, how many people really want to read random novels from the 1970s or a 140 year old book on economics, telling you that Trump is wrong about tariffs?
Maybe with the advent of LLMs, old books will get a resurgence. If a book is printed in the 20th century, at least I know it's written by humans.