Middle class Indian family - i.e. well above average income, whichever average you use. The Ecuadorians are rural, poor & indigenas, with seven children, in a country where 70% is urban & 30% rural (other way round in India), 90% mixed, white or black, & average family size is 2.5 children.
See what I mean? They've not picked equivalent or typical families from each country.
BTW, if you go back two hundred years a typical family here would have been rural, & living largely off sacks of stuff, like the Tchadians & Malians. In the Middle Ages, they'd have had mostly grain, & eaten it mostly as pottage, flavoured with whatever vegetables & meat they might have.