some schools keep them for school shooting circumstances:
"The district — where Columbine High School is located — has been stocking classrooms with small amounts of cat litter since 2017, but as part of “go buckets” that contain emergency supplies in case students are locked in a classroom during a shooting."
https://www.nbcnews.com/tech/misinformation/urban-myth-litter-boxes-schools-became-gop-talking-point-rcna51439Edited by TigerJackSwartz at 10:33:50 on 10/14/22