To be fair....TRADITIONALLY...before the modern day transportation and communication we have....if you were stuck in some remote desert or mountain or forest village with 2,000 people or something....in whatever part of the world....... cousins going to smash.
As in the the last hundred or so years in the U.S.
too, shiit went down in those backwoods with no car and no quality highways and nearest town is 4 hour horse ride. Not saying it was prevalent or even supported, but it happened.
TRADITIONALLY speaking, but now...as more places become connected it should definitely be less and less of that...I agree.

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