Is marriage as an institution becoming obsolete?

I have seen statistics showing that as divorce rates increase, marriages decrease. There was even a study showing that at the rate marriages are declining in this country, there may be more single women than married within the next 10 years. I am getting married soon and my family insisted I wait until 30 because I needed to establish myself first. I understand the argument that you should not give up your independence for someone, but you don't have to give anything up (other than dating other people, and some couples still do that anyway) if you marry the right person. The original purpose of marriage from what I understand was to legally bind two people. Technically, you don't HAVE to be married to have children or behave as a married couple. I am just more of a traditionalist. I believe that by making your relationship legal, there is more incentive to work through problems and stay together as opposed to simply living together and having the option to leave whenever you want without any major repercussions. It really depends on the person, but I certainly think that in this day and age, marriage is being put on the back-burner for personal interest, as is starting a family. It is becoming obsolete.