The thing that a study will likely forget to mention is the reason people marry young. Many marry young because it's apart of their religion. A mormon who gets married is likely going to stay married and to a mormon being 25 and not married is super weird. Also it's very frowned upon to get divorced in a culture like that. So to assert that young people getting married leads to divorce would be incorrect because there is a reason they are getting married young.
Also I meant the study that I'm quoting to be taken as a grain of salt... Just an interesting note, not as gospel. I think we all know that studies about human nature tend to be slanted.