The main objective is to wire the money back to your own country. So theres a nice big stash when you get back home. Obviously living expenses while you are in the country are higher, but if you can survive on a tight budget and then get the money back, you'll do very well.

There is always time to travel around the UK/America.Europe etc, later in life, if you go O/S purely to make money you should come out of it very well.