When Iīm in a fairly secure home and I canīt expect to improve my situation by going to a different place, I will definitely stay.
Itīs always wise to have some supplies just in case you have to stay and canīt resupply. I think many members do that by rotating an adequate stock. Building social bonds will also help when times get tough.

BTW: When you search for it, youīll be able to find some threads on the topics of preparedness for natural desasters and the importance of having a good community.
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If it isnīt broken, it doesnīt have enough features yet.