Yes, because in-breeding and rape are a great insurance policy...
Edit: For the idiots downvoting— The Amish have a really, really big problem in their communities with these things, and try to sweep them under the rug, just like all religious fucks. Sorry you can't handle truth and reality. And if you downvoted because you're Amish...what the fuck are you doing online in the first place?
Can you read? We're talking about Amish. Though the Mormons (regardless of offshoot or rogue denomination) have a history of rape and abuse, too. Religious fuckheads always do.