As somebody that spends a lot of time in Spain I can confirm people read a lot compared to the US in general. Seeing a bunch of teenagers in a park reading books is very common and even in rural town where I stay elder people are well read

What data do you have to support your statement? Because Im the read world A lot of books are published and sold in Spain.

https://institutoautor.org/espana-se-publican-los-datos-del-...

https://www.rtve.es/noticias/20260611/ventas-libros-siguen-a...