Ostensibly, a lot of it is going on. You hear and read plenty about Silicon Valley's young, breeding-age males and females going dateless, and mateless, because their work schedule leaves no time. But wait, you say. This is the information economy. People are free to work with their minds rather than their backs.
Information workers can be anywhere - telecommuters, unchained from rows of desks.
The reality of startups is that they are hard. It really is much harder to invent something, to do something for which there's no convenient model for success. Creating is a lot harder than copying. Starting any business is hard. There's a lot of gritty stuff, icky details and grubby propositions to master and deal with.