Here's the thing. Don't think age is a factor for these reasons.
My adoptive mom and dad married when she was 18 [they dated for 3 years] and he was 27. They celebrated their 60th Wedding Anniversary before dad went to be with the Lord. I had a friend
who didn't marry for the 1st time until she was age 63; it cost her, her life-savings and a terrible ending to an otherwise
beautiful existance. Marriage is a gamble, no matter how you look at it. Sometimes you're lucky. Sometimes you're not!