They might look like them, but don't get it twisted, they are not the same. Jacob and Isabel live in a truck with their two dogs. They are both artists and Jacob actually wrote a book (not a great one, but hey, he's 20). Can you picture Jer and Odd having a relationship under those conditions? Jacob and Isabel live authentic lives, not ones made for Insta. I'm actually shocked they would want to participate in the whole marriage thing, but since they grew up with those ideals I imagine it would be hard to totally part ways with that way of thinking.