I'd probably say that most of my early English was learnt by reading subtitles and listening to American cartoons and shows on TV while eating breakfast before school. If it was dubbed, probably once I got my first computer I'd have a way harder time understanding at least the tiny bits I did understand.
> reading subtitles
So you were already reading. What about younger children?
That said - I fully agree, I’m surprised I don’t speak with a Star Trek accent given where I had most of my early exposure to English.