extended household

The low incidence of extended households in my data and the high proportion of high-caste residents precludes a meaningful test of this hypothesis here.

Under the five tier system in Scotland, people who live on their own or only with children under 18 can form an extended household with people from one other household. People in extended households are counted as one household, and so can continue to meet and socialise with each other despite general restrictions on households mixing, and can stay overnight in each other's homes.