I have a farm that I've been running since I moved back to my home town. I have mostly beef cattle, but but I do produce some row crops (mostly for personal consumption). I have a pecan orchard as well but I'm probably ten years away from any real production. I'm exploring some more unusual things for this part of the world such as olives,crawfish, and alligators, but nothing in the works yet.
I grew up on a farm, and I knew what I was getting into. I do now make a profit, but I could make more money working a couple of ED shifts per year. When I worked as a locums in New Zealand, I lived with a family that owned a small hotel. They did hunt and fish a good bit, but 90% of of the food they ate was produced in a one acre garden about 2 blocks from the hotel.
You don't need a "farm" if you want to grow some of your own food. That can be done on a couple of acres.