Besides that this ignores why that person might have gotten the iPhone (perhaps their parents gave it to them?), having a smart phone doesn’t really indicate ho

Besides that this ignores why that person might have gotten the iPhone (perhaps their parents gave it to them?), having a smart phone doesn’t really indicate how wealthy a person is, and absolutely does not correlate with mobility across income brackets, so no, having an iPhone does not by definition mean you’re better off than your parents.