Then in my undergraduate degree, I learned about code switching in the context of Mexican-American children of immigrants. And it hit hard.
I was code-switching, but within dialects inside of one language instead of within languages. I also learned in that class that EVERY student who grew up rural, poor, minority, or anything other than middle- to upper-middle class white had extremely similar experiences. It was absolutely shocking to 20 year old me.
To your point - this article absolutely reads like people who just never learned how to navigate different groups.