When someone doesn’t do something that is also a course of action. Consciously or unconsciously.
We often focus on the things we can see and point to, as easy targets on which to place blame. Where as the absence of something isn’t always so easy to hold up to scrutiny.
Neglect/isolation is also a form of abuse.
Conscious non-action can sometimes be the wisest path.
The things we don’t do and don’t say are as much saying something about us as the things we do.