the govt counts almost anything as a farm...we have a small garden on 5 acres and I had to fill out one of those farm censuses a few yrs ago....
have on cow and a couple of chickens and the govt probably considers your place a "farm".
Right you are. Three-fourths of farms don not sell enough product to support the producer, who is more of a hobbyist that relies on non-farm income.
https://www.ers.usda.gov/data-products/chart-gallery/gallery/chart-detail/?chartId=58288