Child support can be a touchy issue between divorced parents. While child support is designed to represent the noncustodial parent's contribution to the child's keep, the paying parent may feel like their support is really a secret benefit that's paid to their ex.
Divorce rates are not the same for all age groups, which is one reason why applying the common "50% of marriages fail" rate to all Americans is misleading. You have to break it down by age group to really see what the divorce odds look like for any specific couple. When you do, there are a few interesting observations you can make.