Bro,Sex was ordained for married people,But,the system of marriage in some churches today have made sex before marriage inevitable.Adults should get married as soon as they agree instead this bureacracy in the church,From marriage council to some strange committees spanning a period of 6 months or less as the case may be.Also,people don't marry early now,that may also lead to sex before marriage.
It's wrong,and biblically wrong also. But most men argue that if the woman u're to marry isn't a virgin-and has had sex with another man or other men-why not with u as the husband to be?