Discussing decision making is always about how to make a decision robust. However, what do we think of not making a decision at all?
not making a decision can be either good or bad decision. it is good when it is resulted from making a robust decision to not to take/delay action. this decision is based on information that support it.
on the other hand, it is bad when somebody thinks that nothing will go wrong if they do not take any decision/action. so they take a decision not to make decisions based on fear/psychological concerns.
arguably, both involve decision making that result in not making decisions. Differentiating both is important to be aware of how robust our decision are. Moreover, it helps in creating self-awareness that can be a base for developing personal decision making skills.