From there, you get something that's definitely not true of any other career (or at least only applies to a few). Doctors and lawyers generally don't get to disappear on year-long vacations and then drop back into their previous career path without missing a beat. Developers can. You can go on to lead the life you want, without having to think about how it will damage your career. It's all good from there.
That's a big part of why starting a company is so appealing for recent college graduates. You are forced to "earn it."