They don't care. If you are thin, white, and especially male from the U.S., Canada, or Great Britain they could give a damn. You will give them face, which is King in China. So, they will for sure jump through hoops to please you. I am speaking mainly of Language Schools that offer English classes. Your job especially with kids will be to dance, play and jump through hoops like a properly trained circus animal. The kids are amazing, and eager to learn! My advice is to get a professional teaching credential especially if you want to TEACH. Make sure you get a picture of the accommodations, because they will have no qualms lying to you. Make sure they abide by everything in your contract of you can leve. Also ask them if you ar getting a Z visa, which is basically a residence permit.

My experience in China soured me a bit on the country. However, I have friends that are thriving there. However, one is in Theatre and speaks Chinese like a native. One works for Concordia, the other The French International School, and another is in business (she also speaks Chinese like a native). Good luck whatever you decide.