Why everybody should Study or Work Abroad

We all want to feel that sense of adventure. To, as cheesy (but true) as it sounds, get lost to find ourselves in another culture. One major reason why most people don't just up and leave is due to finances. BUT, studying and/or working abroad is a great way around that. How else do you think I could have afforded to do 4 study/work semesters abroad and be only 21?