Dropping out is so “Silicon Valley” that the first episode of Silicon valley starts with a billionaire encouraging youths to drop out, and a kid successfully raising funding from him by touching him to his core: “If I don’t raise funding, I might… go to uni”. It’s a joke on SV.
Peter Thiel and the people that did his fellowship don’t represent the majority of career paths people take in SV, but they do make for good (or too close to home) fodder.