And at least 16+ content
On a more serious note, there were plans to make Polish language version originally (afair) but it was put on hold. Problem was with quality, FDEVs would need to hire someone to make proper translation and relying on fan translations, while handy, can bring inconsistencies into the translated content. Not to mention lack of supervision. If you don't know the language yourself you can't check if it's done well.