Ahh, extended adolescence. It's such a fun, sexy time in life. You make your own money and can eat cheesecake for dinner if you please, but roommates are often an inevitable arrangement in this stage. Some people do it for fun and some do it out of necessity — especially in high-rent cities like New York — and for others it's meant to be temporary but turns into years. At some point age and roommates can stop mixing. When is it for you?