Courage is not a virtue of value among other personal values like love or fidelity. It is the foundation that underlies and gives reality to all other virtues and personal values. Without courage our love pales into mere dependency. Without courage our fidelity becomes conformism.
The good thing about having a kid is you don't think about that as much. Like when I turned 30, for instance, that was much more momentous. Forty is particularly great for a woman. It's a big thing.