Despite what we would all like to believe, it is not uncommon for one or both parents to be estranged from a child. As the saying goes, you cannot choose your family. Sometimes people simply don’t get along, and that can breed more problems that eat away at the family tree.
Technically, people should not need an incentive to make their alimony payments and to make them on time. They're legally obligated to do so by the court order. That's all the incentive they need.
Some couples have a very hard time talking about getting a prenuptial agreement. They find it stressful and awkward. Maybe you do not even know how to get the conversation started.
The idea of an inheritance is fairly universal, and most people you ask may say that they expect to get one someday. However, one survey showed that is not the case at all, as most of the people who responded had never gotten one.