Between 20-25% of the European population is functionally illiterate. In other words: at least one citizen in five does not have the reading and writing skills they need for functioning in society, with all its consequences for education, employment, health care, welfare, social integration and political participation. ‘More than 73 million adults in the EU… do not have sufficient literacy levels to cope with the daily requirements of personal, social, and economic life’
It is even worse:
https://blogs.fasos.maastrichtuniversity.nl/EUS2516/lowliteracyineurope/
So they are not just not reading any books, they literally can’t read books.