This claim is completely false: multigenerational families "cohabitation" was not born in 1997 in Spain. Even some old BBC Por Aqui Spanish texts from the 1980s have chapters on multigen sharing a house. I have serious problems with AQA MFL claims. It can cost a student a place in a good univ.
Née vers 1997 en Espagne, la cohabitation multigénérationnelle est encore peu développée en Europe. En France, le concept n’est adopté que récemment. Mais son heure est venue et ce phénomène va certainement se propager.