>>588985>why Japanese schools don't teach pronunciation of English constants and vowels prior to learning the actual languageI think it's a bit more subtle than you think. The phonemes for several English sounds (L most specifically and infamously) simply don't exist in Japanese, so if you never learned how to make the noise as a kid (when you have that weird learning speed buff we all spawn with), it's difficult to figure out how to recreate it as an adult, as you never just idly recreated the noises your parents and adults in general were making near you.
Same reason why shit like trilling or rolling Rs just doesn't come naturally to English speakers, or the glottal R of French or similar languages. We never made those noises as kids, so most of us have difficulty making them as adults, unless we make a conscious effort or spend inordinate amounts of time repeating it till we can kinda sorta make it naturally.
>t. had a semester of an English class in university several years ago that spent a lot of time on phonetics, basically a PhD at this point not really 