It is often the case that laowai in China marry young women with no money, no skills, no education and no future.

In the OP's case it's seems his wife has a good worth ethic but this is extremely rare with Chinese women.

I've always wondered why Western men in China want to or need to scrape the bottom of the barrel as far as women are concerned. If you were looking for a wife ( I'm not ) wouldn't you look for the best of the best?

I mean, can't they do any better? Maybe they can't.