Not sure about other US school districts, but LAUSD (Los Angeles) had this going for several weeks now - https://abc7.com/post/los-angeles-unified-school-distri

Not sure about other US school districts, but LAUSD (Los Angeles) had this going for several weeks now - https://abc7.com/post/los-angeles-unified-school-district-cellphone-ban-take-effect-tuesday-includes-smartwatches-smart-glasses/15924439/#:~:text=The%20district's%20board%20passed%20a,and%20concentration%20in%20the%20classroom. https://abc7.com/post/los-angeles-unified-school-district-ce...