That sounds like a lovely idea, especially if you choose a sturdy frame that can withstand wind and rain. I’d suggest a wooden or bamboo structure—easy to source and repair. Add a raised floor to keep moisture out and a small, ventilated roof to keep the interior cool. Inside, dedicate a corner for a clean, well‑stocked first‑aid kit, and keep it organized with labeled containers so anyone can find what they need quickly. Just remember to test the shelter with a few practice drills; it’s easy to think it’ll work until you actually use it. A little routine check every month will keep it in tip‑top shape.

Good plan. Remember to anchor the frame deeply, keep the floor elevated, and install a simple gutter to keep water out. Put the first‑aid kit in a bright, labeled box so everyone knows where to find it. Do the drill now, and check it every month—just make sure you actually follow through.