This isn't a bad analogy but it leaks a fair bit. Many, almost all?, people go to work for a company thinking that they'll spend a specified amound of time wit

This isn't a bad analogy but it leaks a fair bit. Many, almost all?, people go to work for a company thinking that they'll spend a specified amound of time with it. Very few people that I know think that they'll spend their entire life there. In fact in the financial industry it's a very accepted practice to jump around from company to company. Even in the tech industry there are many people who graduate with a plan to work for a Google or Microsoft for a few years to get experience and then plan to go out on their own or to join another startup. Contrast this with marriage were very few people go in thinking that their marrige is only a 4 year commitment and that they'll get divorced and trade up every 5 years.