If that's what's normal there
Function of the "where" of Texas. The State is 800 miles E-W & 800 miles N-S; 20 million of the 26 million population live in just 15 metro areas, each of which are farther apart than Cleveland to Cincinnati. Which means there's a
lot of rural Texas. Almost all of which is privately owned, too.
The landowners, somewhat from necessity, own land in sections--a square mile parcel of 660 acres each--because anything smaller is uneconomical. So, a cattle ranch might make a drive and send 5,6, more semi-truck loads of steers of to market. This often leaves a couple to slaughter
in situ and throw a party with. So, you call the "neighbors." The ones with abutting property will be driving 20 or 30 miles. The ones "in town" might be coming 40 or 50 miles. The drive from the front gate to the main house might be a mile all by itself (might only be 500 yards, too).
But, everyone there is on private property at the owner's permission. So, open carry is not really an issue. Wildlife
could be an issue. Especially as the spread will have gone from having 4 or 5 folk on it, to 20 or 25, which might stir up things like snakes, badgers and the like. Downer stock and slaughter offal can attract less-polite guests like cats and coyotes.