Even with what the ads inform you, drones crash constantly. An excellent drone will just take an unplanned descent and ground interface (aka: a crash) in stride, with out harming the frame. It will likely incorporate shields to shield the rotors and electronics from harm. We also identified ActiveTrack 360° https://www.aeroindustrial.com/product/dji-matrice-350-rtk-combo-con-dji-care-basic/