You'd be surprised, honestly. What matters is also comprehensible input size, so long works like LOTR (which has an excellent Finnish translation by Kersti Juva

You'd be surprised, honestly. What matters is also comprehensible input size, so long works like LOTR (which has an excellent Finnish translation by Kersti Juva for anyone looking to find works to read) are a good choice. Similarly, there's a lot of Finnish literature in Finnish which Finnish people spend time reading, some of which is translated to many, many languages. The Egyptian by Mika Waltari is one of those classics. Not nearly everyone here knows English well. TV shows and movies are usually subtitled as well, save for kids' shows. Finland does however have three mandatory languages in the basic schooling, which are your native language, the other native language, and then English. A fourth one is not uncommon either, so we have a lot of German, Spanish, Russian, Japanese etc. speakers here. Hell, jag kan neljää языки.