Siberian nomads have (to an outsider) very complex tribal systems of ‘what’ your spiritual body is (your spirit has an earthly embodiment like a reindeer, or fox, or river), and therefore who you can and cannot marry. It is patriarchal so the woman joins the man’s tribe. They move frequently even in winter, so you come across other families a lot, and there are times where you camp with other families, or have festivals where the entire region shows up. Lots of matchmaking at those events.

For the Kazakh people it similar but without the spirit world involvement and it is usually the man who moves to the woman’s family.