People who get married before 20 have average marriage of 52 years, with the median being 58.
People who get married between 20 and 25 have average marriage of 55 years, with the median being 53.
First of all, they are pretty close.
Second of all, if you go by the average, then getting married 20-25 wins.
But that whole stat is not applicable today. That stat has to be dealing with people that are at least 70, usually well past that. When they got married divorce was not the staggering percent that it is today.