Like, English is a famously difficult language, and Spanish is supposed to be easier. But babies learn English or any language instinctually.
So do babies learn faster if the native language is easier, or do they acquire language at a constant rate depending on their brain development or whatever?
Yes, that’s the same with most languages. My point is that being proficient in several languages I find English text a lot more repetitive, whereas Spanish text has multiple turns of phrases used to avoid repetition, which also makes it a lot harder to learn (although I don’t think we expect kids to know many synonyms for stuff, and children books tend to stick to simpler construction of phrases).
The things I’ve seen people point to English to claim it’s hard are not really needed to be fluent in speaking the language (which is what kids do).
The main difficulty I guess is more for reading and writing than speaking I guess… when you are encountering a new word, you don’t know how it is going to be spelled or pronounced, and it can be difficult to predict what it will mean sometimes because of all the different roots and pre-postfixes. You just have to learn it and remember it. There is no overarching system lie in Spanish, there are many competing systems.