Engineering for Black Swan events is always going to be expensive. Someone tried to tell me that airplanes crash fairly frequently, so why should we be concern

Engineering for Black Swan events is always going to be expensive. Someone tried to tell me that airplanes crash fairly frequently, so why should we be concerned so much about nuclear reactor accidents? Well, if every time an airplane crashed at an airport, we had to turn that airport into a Chernobyl/Fukushima exclusion zone for the next 100 years, would air travel even be a thing?