Having a degree means nothing much these days anyway. Tradesman earn much more than most uni graduates nowadays.

You are right there, even being a fitter for british gas, or working for yourself as a boiler repairman/fitter will earn you more than teaching in China or even perhaps being a teacher in the UK will ever do. I am not afraid of hard work with my hands. If i ever return to the UK, I would be more than glad and happy to undertake some manual work. Well paid, and you make some mates.