I think you need to learn about farming and terminology. He said he is a farmer not a farm worker there is a huge difference.
My grandfather was a farmer. I saw him either in a three piece suit or jodhpurs and a riding outfit when he was inspecting his farm. Now, his farm had grown to hundreds of thousands of hectares when he passed, but that was his life except for a brief stint in WW I and politics after.
Same for my dad, he got his PhD in horticulture from UCLA and continued in the family business. He never wore overalls, but slacks and a Panama hat with a pressed shirt in the summers and added appropriate clothing in the winter. His favorite saying was that "best fertilizer for land is the footprints of the owner". He grew the properties considerably and managed it. But he was never behind a plow.
My sister manages the family farm now. She is not behind the plow, but manages the farms down to the brand of fertilizers and negotiates the crop sales, hires and fires workers etc. etc.. She would be insulted if you told her she was not a farmer.
Maybe your definition of a farmer is a subsistence farmer on 20 acres?