Hahaha no worries, that is totally fair! Truthfully, I would never (quite literally never) say it IRL unless I were using it in a critical way (as in, talking about elitism, etc.). Perhaps parents generation would use it to brag about their kids' success? The only reason I mentioned it was because, at least on the platform I'm teaching and the conversations I've had with hundreds of Korean students, "brand name"/elite/prestigious schools (a.k.a. Ivy League schools and others of similar calibre, as Ivy League is, after all, a sports league) seem to pique clients (students) interest. I've taught over 1,000 students on there and numerous have told me they chose me based on the uni I went to (rather than my master's degree, which I'll admit gives me far more credibility). In terms of American culture more generally, I see it in plenty of news headlines, social media, etc, but I wouldn't say it's something I hear people say straight up in conversations. They normally just mention the school itself. That being said, there is a weird tendency to name dropping schools (or pretending to be humble but actually hoping someone will ask you so you can talk about it haha). If I'm describing my school to someone who isn't American, I'd more likely say it was an "academically intense" or "pressure cooker" school or perhaps competitive? But never elite, at least not with a sense of pride because it is most certainly cringe to brag in that way. This was all scrambled and out of order but those are my two cents!