Precisely.

You should preapre to both bug in and bug out, but you begin to plan for bugging in. As you begin to plan for bugging in, most of the things you prepare should be things that can be used both in or out if needed. Once you have bugging in planned, you set aside portions or your stores and gears prepared and accessible for immediate flight.

My preparations are not for a family, onyl a couple. We each have BOBs ready to go, the BOBs ar epart of bugging in, but there are also other stores for bugging in.

Some gear can be useful for both. For example, the shelter in the BOBs may be useful indoors. If you are indoors without heat, setting up a tent-like shelter can allow you to remain warmer just be catching some of your body heat and keeping it in a smaller area. I've awoken in a tent while it snowed, and the tent was warm with our heat.