With global warming, the environment is becoming much more volatile. Proper emergency preparedness is difficult. First you need to know what supplies to purchase based on your family composition and size. Second, items, such as OTC medicine, water purification, batteries and food, expire at different times creating a maintenance headache.<p>Would you pay $20/month as an individual or $50/month for a family of four to build and maintain an emergency preparedness kit?
No. I'm very familiar with the preparedness community and while your proposal has value it's going to be tricky to market to a a demographic of self-starters. I think you'd have better luck selling curated 'go bags' for different use cases than with a subscription model.
Could the same goal be achieved by offering a curated "shopping list" on Amazon, with all of the various items that you recommend purchasing? It seems like this doesn't need to be a subscription service. Perhaps just rely on affiliate fees and link to the products that you recommend, with an option to add all of them to the cart? (Not sure if that last part is possible, but maybe!)