Is this new though? Any major city has seen young people doing exactly that with dreams of making it big. So we used to associate this more with artists, actors

Is this new though? Any major city has seen young people doing exactly that with dreams of making it big. So we used to associate this more with artists, actors and alike. Now in certain places we can add tech start-up founders to the list. And unlike the aforementioned, these are generally people who can get a well paid job if they wanted to. It's part of being young and ambitious, and I don't see much difference between young founders begging for funding and actors going on auditions.