Most Kiwis do an OE. It is a right of passage, a long standing tradition. Almost all Kiwis I know under 40 have done one. Being stuck so far away from the rest of the world many young (and older) Kiwis will do a 2-3 year stint in UK, go travelling etc. Some then work in Oz, and then many return to settle down, buy a house with the pounds they saved etc.