[MMM]

The vast majority of foreigners living and working in Japan do not have degrees. The vast majority of foreigners living and working in Japan are Korean, followed by Chinese and Filipinos, and do everything from welding to commercial fishing. Physical, manual labor is a common path for these foreigners in Japan.

Now if you are talking about foreigners from the West (Americas/Europe/Oceania) living in Japan, then the numbers change the other way (and I think that's what we are talking about). A majority of Westerners living in working in Japan are English teachers. Most teaching positions, public (JET) or private (ECC, Geos, etc.) require a degree and/or some level or experience or training.