Not OP but I moved to Germany as a single language speaker (well, some French from school that I was never much good at) in my mid 20s. Language classes for a f

Not OP but I moved to Germany as a single language speaker (well, some French from school that I was never much good at) in my mid 20s. Language classes for a few months and immersion made me pretty fluent over a year or two. Adults can learn languages just fine with motivation and immersion, I think. My children who were born here later on already speak better German than I do. Of course, I work in English and they go to German school, so it’s not exactly like-for-like. But their English accent is better than my German one and they’ve a LOT less experience there than I do in German.