You could easily be correct. I dunno. Here where I live . . . NOW . . . you would surely be correct. But that’s now. Back long ago when I bought the land nobody had a clue there were valuable minerals way down. And the land was priced accordingly.
Smartest thing I ever did was purchase of land.
Dumbest thing I ever did was failure to buy still more land back when I was buying. Course it was all luck. Way back, right along with everyone else, I had no clue I was buying a “gold mine”. I did have the sense back then, solely based on instinct and nothing else whatsoever, to insist the mineral rights were still attached to my land.
For FIRE participants in particular, it would be unwise to purchase land upon which you intend to live (I live on my land), without being certain you own the mineral rights. You could wake up one morning (this has happened more than once) to find a drilling rig being erected adjacent to your retirement paradise.
For city folks who do not understand how retired rural landowners can collect large royalties while not experiencing disruption from drilling, I offer these two words:
The rigs responsible for my royalties were a mile away several years ago when drilling was ongoing. Now they are gone completely. We did have a pair of bald eagles nesting adjacent to one of the drilling pads. They produced young eagles. That was pretty cool.