If kids and woman are to remain safe (and man as well...), i think family should train Martial Arts together, perhaps even with friends.
Not only punches and strikes, but how to remain aware and behave in dangerous situations as well. It's self-defence aspect of Martial Arts, in a group.
How to not be scared, how to be coordinated, efficient, and if possible, how to avoid danger and combat at all.
They should think together, consider many scenarios and practice such, using experience of professionals.
They should make such decisions together, and select their roles for each of such scenarios.