Lupin family life is similar to that of humans. Adults usually marry before having children, who are then cared for by both parents until they reach adulthood. Young lupins usually have some freedom in choosing their mates and professions, but the family can influence both choices. Nobles occasionally marry outside their class, but the middle class tends to reject marriages of nobles to peasants. A great deal of their exports channel through the Free City of Dunwick, a city of merchants located at the heart of the sacred tortle lands.
Lupins are on friendly terms with humans, elves, and dwarves.
They do have occasional territorial disputes with the rakastas, but otherwise they bear them no animosity. They dislike phanatons, whose screeching hurts their ears, and they view caymas, shazaks, gurrash, and tortles as savages of varying degrees. Lupins dislike goblinoids and hate all evil canines, especially werewolves.