I don’t think children have any more difficulty learning to speak English than other languages. The difficulty comes in learning to spell in writing and, to a lesser extent, learning to pronounce written words when writing. Btw, there’s actually much more regularity in English spelling/pronunciation than may appear, and than is routinely taught. Much of the “weirdness” is the result of historical processes which are fairly regular in themselves, once you know the rules.
I don’t think children have any more difficulty learning to speak English than other languages. The difficulty comes in learning to spell in writing and, to a lesser extent, learning to pronounce written words when writing. Btw, there’s actually much more regularity in English spelling/pronunciation than may appear, and than is routinely taught. Much of the “weirdness” is the result of historical processes which are fairly regular in themselves, once you know the rules.