Australian tribes admitted strangers only if kinship ties could be established.

Evidence

At every moment of the life of a member of an Australian tribe his dealings with other individuals are regulated by the relationship in which he stands to them … Thus in any part of the continent when a stranger comes to camp the first thing to be done, before he can be admitted within the camp, is to determine his relationship to every man and woman in it, i.e., to determine what is the proper term of relationship for him to apply to each of them … Social relations of any type [could not be] established with strangers unless these could demonstrate that they were connected by kinship ties with someone within the horde. A stranger from an unknown tribe, unless he came accredited as a sacred messenger, would most probably be promptly speared. — Lyn H. Lofland, World of Strangers_ Order and Action in…, 52

Categorization

• XREF: Contrast case against Lofland’s own argument: kinship-based ordering of strangers is the exact social technology that urban anonymity supersedes.