I don't know how physically close your family is, but I think you have to think about the various "Bug Out" scenarios very closely.

To my mind, most of the scenarios are highly local, starting with the individual house (e.g. a fire, then the neighborhood (e.g. gas leak) and so on. These sort of events (there can be many variations), while they might affect you or some family members, are very unlikely to affect everyone, so not everyone would need to bug out. They may be safe, sound and secure where they are.

In a large scale event, e.g. a Katrina or earthquake, then maybe everyone would want to bug out, but realistically, the chance of doing that will be limited by time and the capacity of the local roads to handle the traffic. This is the problem that Dagney faces in DC. Bugging In then becomes the most logical and effective alternative.

So IMO, bugging out really only applies in a very limited set of local circumstances. I agree with the comments along the line that bugging out and living in the woods are unrealistic.

From some of your other posts, I think you are already trying to get the family members thinking of prepping for the unexpected; this is probably the most effective and useful thing you (and they) can do.

I wouldn't worry too much about a family wide "Bug Out" scenario.