Those Life-Long Farmers Aren't

Nathan Yau at Flowing Data has data on people who change jobs/careers.  Interesting, but what I found worthy of comment is the position of farmers--they're the second most likely occupation to change careers.  Only 30 percent stay farmers.  I suspect that's a combination of people pushed off the farm because of adverse economics (i.e., not enough available land, etc.) plus, as I'm a cynic, people who try farming and fail (i.e., hobbyist types).