Should we get married? Or should we divorce?

The talks i've been having lately managed to get me asking myself a lot of questions about life...
So...today we have:"get married, don't die an old maid" dilemma.
Our society seemed to have evolved in the past few years. We've begun to understand that it's ok to talk, it's ok to share your feelings, it's ok to admit that you have this personality and not another one, it's ok to let go and be yourself.
All that and yet....we've gone nowhere. The cultural bullshit is still so much present in our lives and the beliefs we have still hold us back. One of the issues i'm getting from the surroundings is that, if you're reached a certain age and you're not married, you definitely have a problem. Where is this evolution that people talk about, that people are able to be themselves without a certain someone beside? And i'm not talking only about women, which is definitely a burning subject all around me, but also about men...
I have one good friend that calculates the year's season in function of his ability of being with somebody or not: "getting to know a new person can only happen during autumn and winter". I have another friend that started to calculate the years in:"12 months until getting to really know somebody, 12 months to get married, 12 months of being just the 2 of us, and 9 months to have a baby". It's freaking me out. I'm not saying that it's a bad stuff to get married, but our life doesn't depend on it, does it?
So seeing that, i've started to do some research, not about getting married ("Top 10 tips of how to get married faster" :)) ), but about divorce, since one marriage out of two end in it. Yes, current divorce statistics in America is estimated at 50%. The Americans for Divorce Reform estimates that "Probably, 40 or possibly even 50 percent of marriages will end in divorce if current trends continue."
Regarding the age when married, the divorce rate is like this:
Age__________________Women______Men
Under 20 years old_____27.6%_____11.7%
20 to 24 years old_____36.6%_____38.8%
25 to 29 years old_____16.4%_____22.3%
30 to 34 years old______8.5%_____11.6%
35 to 39 years old______5.1%______6.5%
And if, after your first failed marriage, you decide to do it again, well, you should think twice about it, because the divorce rate goes higher:the divorce rate in America for first marriage is 41%, for second marriage is 60% and for third marriage is 73%.
Seeing all these, i've started to wonder why marriages fail. Not all marriages fail for the same reason, that's for sure. Nor is there usually one reason for the breakdown of a particular marriage. Nevertheless, i've found some reasons more often than others, which are:
-Poor communication
-Financial problems
-A lack of commitment to the marriage
-A dramatic change in priorities
-Infidelity
There are other causes we see a lot, but not quite as often as those listed above, which are:
-Failed expectations or unmet needs
-Addictions and substance abuse
-Physical, sexual or emotional abuse
-Lack of conflict resolution skills
So, after this, i started to wonder how come this happens. Since we all seem to be so eager to get married (meaning that we definitely are ready, since is somehow the first thing on everybody's list lately), what happens during it? Wouldn't it be more fare to us to learn first of all to communicate? (at least 5 out of 9 of the problem of above are due to lack of communication). I mean, getting married is not a solution to a problem, as many of us seem to look at it. Perhaps we shouldn't calculate our time in months until a serious relationship/marriage, but invest it in something more useful, like "how to communicate exaclty what's on your mind" or "how to set up the right expectations" or "how to take what is said exactly like that and never interpret more".