amazonas(brazil) anthropology aspectsocial cashinahua(indiens) cashinawaindians conflictofgenerations conflitdegénérations culture families familles family genderidentity general indiansofsouthamerica intergenerationalrelations kinship kinshipandmarriage(ethnology) marriage mœursetcoutumes nuclearfamily(sociology) politicalscience publicpolicy relationsentregénérations sexrole socialclasses sociallifeandcustoms socialpolicy socialscience sociology sozialanthropologie verwandtschaft verwantschap welfarestate étatprovidence