The socialists of the Danish party The Green Left wants to make it illegal for primary school pupils to bring mobile phones and tablets to school. Instead The Green Left wants to reintroduce paper and pencils.
If you children ask, pencils where 20 centimeter long wooden sticks with a core of graphite, which were used in the previous millennium. When rubbed against paper, these pencils would leave markings that looked like letters on a screen.
Source (in Danish):
https://www.dr.dk/nyheder/politik/sf-vil-have-skaerme-ud-af-folkeskolen-mobilen-skal-ud-flere-papirboeger-og-blyanter