Wealthy Romans valued privacy and seclusion for their country estates.
The over-the-border private colonization of frontier areas during the Roman Empire hasn’t been taught in schools (gee, I wonder why?), but it led to an extension of the reach of Roman culture, politics, and maybe (for a time) the Latin language. In the 1990s a Roman fortified outpost was found in Ireland. It could have been a military station, perhaps dating from Agricola’s campaign in Scotland, or it may have been a privately-established trading post / colony. Or perhaps a combination of both (since the Roman army opened up areas for commerce as well as settlement). One unknown ancient entrepreneur brought a small colony of pottery makers from India, settled them on the Egyptian shore of the Red Sea (just as inviting and habitable then as now, I’m sure), and made fake-authentic Indian pottery to sell into the the seemingly boundless Roman market for Indian imports, thus saving him time and long voyages using the monsoon winds.