I happened to have had the luck to grow up at just the right time to have some subset of foreign children's television in NL be subtitled still - and combined w

I happened to have had the luck to grow up at just the right time to have some subset of foreign children's television in NL be subtitled still - and combined with the ability to read early, ended up remarkably fluent in English at a pretty early age. I'd imagine the same goes for other people who grew up with subtitled children's television shows during this brief phase.