Die Unesco sieht die Bildung an Schulen durch Smartphones gefährdet. Die Mobiltelefone hätten deshalb im Unterricht nichts verloren.
https://unesdoc.unesco.org/ark:/48223/pf0000386147
Large-scale international assessment data, such as that provided by the Programme for International Student Assessment (PISA), suggest a negative link between excessive ICT use and student performance. Mere proximity to a mobile device was found to distract students and to have a negative impact on learning in 14 countries, yet less than one in four have banned smartphone use in schools.
https://unesdoc.unesco.org/ark:/48223/pf0000386147
https://www.heise.de/news/Unesco-will-Smartphones-aus-Schulen-verbannen-9226676.html