This is true. Growing a few crops for yourself is relatively easy. Try some potatoes or mint. Seriously, mint is so easy to grow you can’t plant it in the ground. It will take over, because it’s a weed.

However growing crops for billions of people is an entire industry. Farmers don’t pay more than a Lamborghini for a tractor because they think it’s cool. You need a ton of resources to farm acres of land.