Well said, Deb. But I still think the American Dream is a societal thing in this context rather than an individual thing.
In American society, the first dream of probably virtually everyone is to have a nice house one day, somewhere on the level of finding a good partner, and, for many, having kids or a car. The stuff beat only by the more primal need of a vulnerable child to have a good safe home life and nice, caring, responsible parents. In other words, indispensable, and at the core of the idea of "who I want to be when I grow up."
When I was growing up, I also wanted to be Tarzan. My brother wanted to grow up to be a dolphin. We all change as we move through life, but before we embrace what makes us unique or even figure out what that is, we imbibe the culture we were born into. We may one day decide we believe that the America credo is "life, liberty, and the pursuit of anchovies," but we almost certainly start off with the far more general "life, liberty, and the pursuit of happiness."
Which is nothing against anchovies, of course. Who is anyone to say what anyone else should like?