Indeed. I will say a few years teaching TEFL in China does not qualify you for anything in the UK, not at all. Perhaps a part time or voluntary position but beyond that, nothing.

I applied for a basic dead end data entry position and the girl in the recruitment agency seemed baffled by my knocked up CV with my teaching in the public sector in China. So, if you have a house, solid financial investments, perhaps returning to the UK is ok, but otherwise I would not advise it, not at all, unless you spend a few years planning and saving for it, and are able to get back into a well paid job and renting a nice flat from the get go.

Ah wel....