The tech world is often criticized for being trend obsessed but it seems to happen in education quite often too. My high school was built in the 1970s during the wall-less open learning community fad. That flopped hard and the school ended up with several different physical hacks for dividing up those spaces into something resembling a traditional classroom. The chemistry lab was the only room to get actual masonry walls. Most everywhere else had what were little more than oversize cubicle partitions, which meant noise from every class ended up leaking into every other class. It is baffling that anyone thought having a high school without walls was a good idea, but our high school was far from being the only one built that way during that time period.