Many people get married for the wrong reasons and when the MAJIC wears off they say what did I get into. We live in a throw away generation. You bought something and it doesn’t work throw it in the garbage.
People don’t realize the financial cost of divorce. There are two homes to maintain. Unless you are very wealthy alimony, child support and legal fees can take up 75% of your income leaving you very little to support yourself with. As far as not paying alimony or child support. If you work in the US you can be tracked by your social security number and your wages garnished unless you work off the grid. No bank account and no assets. You still run the risk of going to jail for failure to pay alimony and or child support. Many states have units that hunt these parents down as the state is usually the one that has to support these families.
The first step in avoiding divorce is after every fight try to be the first to say your sorry and never go to sleep before apologizing even if you think your right apologize. It will make for a longer marriage.