Locally (Stockholm, Sweden) the head of the city libraries has made a statement of battling the 'quietness norm' in libraries. Most of them now have playgrounds, one in Kista (where I happened to live at the time) won awards for best library in the world and in Sweden the same year. It was completely unusable for what me and my fiance usually do at the library. The study rooms had the ventilation system for the build…
https://www.senatehouselibrary.ac.uk/using-the-library/inter...