No, it doesn’t depend on how you define “children.” People get continually better at learning second languages, up at least to age 16. For every aspect of language (except accent) that people have measured, older people learn faster. Forget your anecdotes and read the literature.
I’ve only seen one study that included 3 year-olds. And it didn’t include many, so it didn’t break them out and only concluded that the range of 3-5 did worse than 6-7.
No, it doesn’t depend on how you define “children.” People get continually better at learning second languages, up at least to age 16. For every aspect of language (except accent) that people have measured, older people learn faster. Forget your anecdotes and read the literature.
If you’re appealing to the literature, it would be good form to provide references.
Would this include humans less than four years of age?
I’ve only seen one study that included 3 year-olds. And it didn’t include many, so it didn’t break them out and only concluded that the range of 3-5 did worse than 6-7.