The first thought that came to my mind is what is easily aquired is easy to throw away.
Here is what one article said :
Some think that premarital sex provides experience that can make for easier sexual adjustment in marriage. It is common in some lands for wealthy fathers to take their sons to prostitutes for “education.” Persons may feel that this is helpful. But it really is not, according to our Creator, who...

The first thought that came to my mind is what is easily aquired is easy to throw away.
Here is what one article said :
Some think that premarital sex provides experience that can make for easier sexual adjustment in marriage. It is common in some lands for wealthy fathers to take their sons to prostitutes for “education.” Persons may feel that this is helpful. But it really is not, according to our Creator, who has observed all human experience. Maintaining chastity beforehand lays a far better groundwork for a happy marriage. Canadian studies disclosed that teen-agers who had early premarital sex are more likely to cheat on their mates when once married. But persons who maintain chastity beforehand are more likely to be chaste in marriage; the respect and honor for marriage they had before the wedding day continue after it.

It is better to marry a person whom you personally know.