Just to China. Nongs don't even care if they are learning in class, as long as there is a white person in front of them. Most are too arrogant to want to use a foreign language to interact with other cultures, anyway (if China is number 1, why bother?). Dance like a monkey, and moderate money will come. I am not sure why you seem to think that making money off of being a white, dancing child's plaything is more fulfilling than a dead-end fast food gig, but there you go.

And, the employers actually prefer employees who can't secure legal documents--because said employees cannot appeal to SAFEA when the employers don't pay them or otherwise honor their contract (it is the rare Mainlander that actually believes in honoring business agreements). Believe me, if you are working for a training center in China on an illegal visa...they will have you over a barrel in a foreign land. Don't expect them to not screw you over--this is, after all, a culture of people who spent decades throwing neighbors, teachers, and family members under the bus for slight advancements and favors.

Be warned--China is a polluted, filthy country with a nasty, self-serving population. They don't really deserve quality teachers (the pay isn't even that good), so I have no qualms with unqualified people teaching there...but you really should think twice before dealing with them.