This. We live in farm country and bare land loans have gone from 20% down to 25% down in the last couple of years. You receive loans in chunks for building a custom home as the builder completes milestones. There was a "restoration" loan that came with certified builders and a government mandated architect that signed off on payment to the builder as milestones were reached. I am not sure if this type of loan is available any longer. In my opinion it is very difficult to purchase a mini farm (less than 100 acres) and make a go of it in the south. Some of our friends are building "barn" homes. Buy the land cheaply 5-10 acres. Have a metal barn built for less than $60k and then convert the interior to a home. This is very popular currently in Carroll county GA (feeder to Atlanta for jobs).
Although I think throwaway is correct that that isn't what they meant, people do indeed lease land in the United States. It's more common in commercial real estate, but there are also (predatory, in my opinion) land leases for "manufactured" (i.e. mobile) homes where the resident buys the home but doesn't own the land under it.
Yes, throwaway understood my meaning... and you are right too that there are circumstances where people own a home but not the land underneath. Apart from the example you gave, I'm also vaguely aware of cases where tribes own reservation land where homes have been built by non-tribe members who technically have a lease to the land.
And actually you bring up another wrinkle, which is if you don't own the land underneath, there are plenty of lenders who also won't lend to you to buy a manufactured home, because they consider it to be personal property rather than a permanent dwelling (which they could more easily foreclose and sell)