Idk if you’re familiar with Korean aegyo? Where in order to sound cute, they draw out the syllables of the words really long and pitch their voices very high? Other Asian nations do it too, in China or Japan or Thailand for example, to beg someone or be cute to manipulate someone. “Chebalyoooo” 제발요ㅇㅇㅇㅇ~ like so? This is called whining in English. It’s a sound, a high pitched plea, and it’s culturally highly regarded as extremely annoying and childish, which causes a cultural disconnect or lack of respect in culturally unaware Americans towards Asian people who do it for aegyo. When I was in high school I had a friend who was a Taiwanese exchange student and a lot of people looked down on her or didn’t like her because she was constantly emphatically jumping around and whining in a manner standard of Asian high schoolers.. but in American culture, it makes you look like a 3 year old throwing a temper tantrum. It’s super unattractive and cringy to American high schoolers (or at least it was back in 2009 before 한류, the cultural wave that made Korean pop culture relevant in Western countries).

Growing up, parents constantly tell children “stop whining” and it refers to any time a child makes that ~~ sound at the end of their words in a manipulative begging/pleading manner. It’s seen as disrespectful and childish, which is why in teens or adults we don’t view it as cute at all, and where the cultural difference comes from.