Many company stop employing drop out guys. Only new graduate. I failed sellecting company when I was new graduate. I worked AM8:00-PM11:30 everyday.
I dorped out that company. So job change is very very hard...
I know a number of Japanese who have come through my English language center who hated their jobs in Japan and decided to make a go of it in the United States. Considering that we value experience and education highly, many of them have enrolled for Masters in Business Administration and found jobs in the U.S. that they are more satisfied with. I do, however, know a few people who hated it here and returned to Japan, so take that into consideration, please, as well.
Generally, we have a very
laissez faire approach to work in the United States. Since many employers can dismiss you at will, many workers are only as loyal as their companies are in return. Labor is a commodity (ECON 101, baby), and employers know that. They also know, however, that it is a commodity in some level of abundance so you must be competitive.
However, the system is quite different in the United States than Japan. You might want to try getting a job working for a Japanese company through their U.S. divisions. But in the end it is up to you.
I'd also be careful, though. I have a feeling the U.S. is headed for a major recession in the next decade, but that's just me. And if you don't come here, but rather stay in Japan or go to another country, I wish you luck, regardless of what you choose.