In spite of just what the advertisements let you know, drones crash all the time. A very good drone will acquire an unplanned descent and floor interface (aka: a crash) in stride, without the need of damaging the body. It will also include shields to protect the rotors and electronics https://www.aeroindustrial.com/compra-drones-dji-y-accesorios-en-la-tienda-en-linea-de-aero-industrial/