I've never believed in the American dream, I wouldn't want to live in that country or in a country that strives to be similar to it. But I think it used to be pretty common for people in my country to have this dream or a dream of something similar because our country isn't good at social mobility or at encouraging business. But we also don't have student debt or overly expensive healthcare, so there's that.
To be honest, my country's situation is kind of special right now because it's Ukraine, and we are at war with a much bigger country. So in my country, the Ukrainian dream is to get our territory back (the areas Russia occupied), to finally be free to grow and develop without Russia's opinion meaning anything, to overcome corruption, and to have peace (but only on our terms). The economy isn't a priority right now, for obvious reasons.