How old were you when you knew English?
I think I was 10 years old.
Or at least I learned it in school at that age.
Before that, I could only speak Danish and my native language. (knowing that language at 8, but learned it in school at age 9)
Even though before I learned English, I did know a few words and sentences in that language.
I know that when I was 10 years old, my English was kinda bad and sometimes when I was watching an animated movie on DVD, I preferred watching it with Danish dub (I even sometimes preferred watching Norwegian dub).
But now I think my English is very good.