It's very rare for the marriage pool of a group to be only fifty people. Even pretty isolated people would probably be in contact with thousands of other people over the course of the year if they were semi-nomadic, or at faires and other festivals and gatherings.
Probably not like... 50, but even in a small town of a couple of thousand people, you're going to be interacting with 1st, second, and third cousins pretty regularly. I have a friend from an old family in a small modern town of 15k, and she said that dating in highschool was actually kinda fraught because of this.
I think that level of incest is actually way more common than our modern sensibilities would suggest. It isn't siblings fucking or anything.
It's very rare for the marriage pool of a group to be only fifty people. Even pretty isolated people would probably be in contact with thousands of other people over the course of the year if they were semi-nomadic, or at faires and other festivals and gatherings.
Probably not like... 50, but even in a small town of a couple of thousand people, you're going to be interacting with 1st, second, and third cousins pretty regularly. I have a friend from an old family in a small modern town of 15k, and she said that dating in highschool was actually kinda fraught because of this.
I think that level of incest is actually way more common than our modern sensibilities would suggest. It isn't siblings fucking or anything.