Working with animals is hard work. Working with crops can be hard work. Working with corn and soybeans can be pretty easy.
40-50 years ago, you had to plow, then disk, then harrow, then plant, then cultivate, the cultivate again, then cultivate again, then wait, then pick the corn, then shell the corn, then finally sell the corn. Your biggest tractor was a 3020 JD with 60hp. Your combine was a 3 row mounted picker. Your plow was 4 bottoms max. Corn yields were lucky to be 50 bushels/acre. You hauled it up to 30 miles one way with a tractor and gravity wagon going 15 mph tops, and hauling maybe 300 bushels each trip.
Today, you run all no-till, so you call in someone to spray, then you plant with your air conditioned 200hp tractor planting 20+ rows at a time. Then you call a guy to spray again. Then you wait. Then you pick the corn in your air conditioned 8 row+ combine, and haul it in your air conditioned semi truck that can haul 1200 bushels, and goes 70 mph.
And to top it off, you are now getting 200 bushels/acre.
Just like manufacturing, technology has totally changed the game. 50 years ago, an entire extended family may have farmed 200 acres. Today, one man and a few seasonal helpers can do 500+. Larger outfits are doing thousands or acres. Less jobs, the job that are left are higher skilled, and more wealth is concentrated in less hands. Sound familiar?
I'd love to hear any stories about 30 year old guys buying 100 acre farms today. It's flat out impossible unless you are already rich.