why is implementing a mental test important before marriage

The problem (divorce rate is increasing)
Current difficulties (what are the difficulties each spouse facing nowadays that lead to divorce in first year of marriage)
The need for this innovation (why is it important to do a mandatory mental test before marriage) 
Main goals and benefits of the mental test
Process guidance
Key performance indicators
(what will we avoid when we apply this test what will it provide us with, who will it serve)