If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.
Maybe he meant life expectancy. Anyway, that too is locale specific and depends on your life style and (increasingly with age) on healthcare availability - which could be hampered a lot by moving abroad. Not taking into account increased stress due to unfamiliar environment and (likely) less satisfying job.
Life expectancy in SA is mostly dragged down by high infant mortality and the incidence of AIDS. Not that those might not be important to you, but they are manageable risks for an adult.