Most people your age do not by any means conduct themselves like this, nor could they if they wanted to. Their "nanny" is their sister or mother or mother in law or a neighbor.
They don't go to a fancy restaurant because they don't have the money for both the fancy restaurant and a baby-sitter.
They're a two income-family forever, not until stock options vest and can be sold on secondary markets to speculators with easy capital.
This whole scenario is ridiculous and not at all representative of anything but a very small demographic. But I guess that's the Valley, at least to this outsider reading articles like this.