Oh please, you're being dense if you don't understand the name "kin"
Main Entry: 1kin
1 : a group of persons of common ancestry : clan
2 a : one's relatives : kindred b : kinsman <he wasn't any kin to you — Jean Stafford>
The kin allows you to easily stay in touch with your "kin" and the ease of such is a pretty unique way to market that "kin""ship"
some people are so dense :)